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"Just leave Christmas": Barnaby Joyce fires up over gender-neutral cookies

<p>Some stories are big: wars, elections, pandemics. Others are tiny – crispy, vaguely human-shaped and destined for dunking in tea.</p> <p>The humble Gingerbread Man – or rather, its gender-neutral successor, the Gingerbread Person – has sent shockwaves through Parliament House and left a trail of crumbs all the way to the nearest bakery.</p> <p>The biscuit's modern makeover has Barnaby Joyce and Nationals Senator Matt Canavan crying "Save Christmas!" faster than you can say, "Not my gumdrop buttons!"</p> <p>While many of us would struggle to find outrage over baked goods – especially baked goods with no opinion on pronouns – Joyce sees a far darker picture. For him, this is political correctness gone so far off the rails it could inspire an army of ginger-fuelled Trump supporters.</p> <p>“It’s just like, all this stuff has been forced on me, just leave it,” he declared, presumably staring down a gender-neutral cookie in his local parliamentary cafeteria. “Just leave Christmas. If you don’t want to buy Gingerbread men, you don’t have to.” Then, proving politicians aren’t immune to comedic flair, he added: “Can I have one for me and one for it on table 3?”</p> <p>Meanwhile, Senator Canavan was equally distraught at the development, lamenting the apparent death of whimsy. “Please tell me they haven’t done this to the muffin man as well?” he begged, as if imagining a bleak future where fairytale characters are stripped of gender and fun.</p> <p>If you thought Parliament was alone in this existential ginger-crisis, think again. Supermarket giant Woolworths has already abandoned the “man” for a more inclusive “Gingerbread People”, and even <em>Women’s Weekly</em>, that wholesome bastion of baking, has shared a recipe for the modern, genderless cookie.</p> <p>It was Woolworths' decision that drew particular ire from a radio caller named Harry, who tattled to Melbourne’s 3AW like a child narking on a sibling. “Woolies has decided to start selling – under their own brand – non-binary Gingerbread people,” he reported solemnly.</p> <p>This news rocked radio host Tom Elliott, who lamented that none of the gingerbread figures “resemble women”. (For clarity’s sake, it’s worth noting that Gingerbread Men have never been renowned for their realistic depiction of human anatomy.)</p> <p>Online, the social media masses weighed in with their usual measured, level-headed takes. One user proclaimed they were “too busy caring about my electricity bill doubling” to give a crumb about cookies. Another’s sarcastic sympathy dripped from the screen: “If you can’t handle a biscuit with ‘man’ in the name, simply grab a box of tissues and retreat to your safe space.”</p> <p>And in the darkest corner of the internet, one person’s exasperation boiled over: “Jesus Christ. It’s a biscuit vaguely shaped like a human. Do we need to make a biscuit gender neutral so we don’t offend people?”</p> <p>Let’s face it: the Gingerbread Man is not, and has never been, the hill anyone expected society to die on. It doesn’t vote, drive or go to Centrelink. It’s a biscuit. Yet, here we are, watching as Barnaby Joyce and Matt Canavan rise like knights to defend a sugary snack from the insidious forces of progress.</p> <p>Does the average person truly care if their Gingerbread Man identifies as a Gingerbread Person? Is anyone truly shaking with rage while browsing the supermarket biscuit aisle? Or are most of us too busy, well, eating them?</p> <p>In the end, we must ask ourselves the hard questions: Will the Muffin Man survive the purge? Is Santa’s reindeer team next? And most importantly: if they’re still delicious, does it even matter?</p> <p>For now, the only certainty is that political correctness has officially reached the snack table. Somewhere, a batch of gender-neutral gingerbread people is cooling, blissfully unaware that their mere existence has triggered a full-scale political bake-off.</p> <p>And so, in the spirit of the festive season – let’s agree to eat the biscuit and leave the outrage for another day.</p> <p><em>Images: Supplied</em></p>

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Festive bulge: scientists offer advice on how to beat overeating

<div class="theconversation-article-body"><em><a href="https://theconversation.com/profiles/thomas-c-erren-336309">Thomas C. Erren</a>, <a href="https://theconversation.com/institutions/university-of-cologne-2576">University of Cologne</a>; <a href="https://theconversation.com/profiles/philip-lewis-429997">Philip Lewis</a>, <a href="https://theconversation.com/institutions/university-of-cologne-2576">University of Cologne</a>, and <a href="https://theconversation.com/profiles/ursula-wild-1398207">Ursula Wild</a>, <a href="https://theconversation.com/institutions/university-of-cologne-2576">University of Cologne</a></em></p> <p>Christmas and New Year are holidays with dietary excesses that many of us cannot control. This often leads to the “festive bulge”. As the holidays approach, could there be a recipe to contain this weight gain and pave the way to sustainable nutrition-based health at the same time?</p> <p>There’s a lot of focus on what we eat and how much we eat – but what about <em>when</em> we eat?</p> <p>Chrononutrition is the science of how timing affects our responses to nutrients. <a href="https://www.sciencedirect.com/science/article/pii/S0092867415003025?via%3Dihub">Scientific insights</a> into when we eat suggest it may be worth exploring for better health.</p> <p>While the idea of getting started on <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9370396/">chrononutrition over Christmas</a> can sound challenging, the guilty conscience that tends to follow feasting over the holidays may provide the needed motivation for the year ahead.</p> <p>So for better health in the new year, why not try out time-restricted eating (TRE)? TRE is a type of <a href="https://theconversation.com/is-intermittent-fasting-actually-good-for-weight-loss-heres-what-the-evidence-says-183500">intermittent fasting</a>: a person eats all their meals and snacks within a particular time window, ranging from six to 12 hours each day. This implies 12 to 18 hours of fasting.</p> <p><a href="https://theconversation.com/is-body-weight-affected-by-when-you-eat-heres-what-science-knows-so-far-143303">More</a> and <a href="https://theconversation.com/delay-eating-breakfast-and-eat-dinner-early-if-you-want-to-lose-body-fat-new-study-101058">more research</a> suggests that this kind of timing may have a significant influence on our health via <a href="https://pubmed.ncbi.nlm.nih.gov/25404320/">interplays</a> between our <a href="https://pubmed.ncbi.nlm.nih.gov/25815987/">body clocks and nutrition</a>.</p> <p>As researchers with a focus on circadian biology, we have <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9370396/">identified the festive season</a> as a suitable starting point for a lifestyle change to time-restricted eating.</p> <h2>What is chrononutrition?</h2> <p>The basic idea of chrononutrition is that the body’s response to the timing of meals can promote well-being and health via the circadian timing system. This timing system refers to the internal 24-hour mechanism that primes our bodies for the challenges and stimuli of the 24-hour day. This includes when nutrients are likely to be consumed, how they are used within the body at a given time and how the body responds to them at a given time.</p> <p>A rodent experiment in the <a href="https://academic.oup.com/jn/article-abstract/10/1/63/4725662">1930s</a> led to a focus on counting calories and calorie-restricted eating. This dietary restriction extended the lifespan of rats in this case. It was subsequently shown in a wide range of species. The promise is large: if you eat less, then weight loss, better health and a longer life may follow.</p> <p>The rodent experiment was followed by research into diets that foster health and prevent disease. Interest in <a href="https://pubmed.ncbi.nlm.nih.gov/3794831/">“meal-timing, circadian rhythms and lifespan”</a> was sparked by Franz Halberg (known as the father of American chronobiology), among others, in the 1980s.</p> <p>These studies around food and behaviour take <a href="https://pubmed.ncbi.nlm.nih.gov/25404320/">evolutionary considerations</a> into account. For instance, rodents gain fitness when fed in a time-restricted manner. In contrast, human behaviour tends to involve more <a href="https://pubmed.ncbi.nlm.nih.gov/26411343/">erratic eating patterns</a> during the hours when people are awake.</p> <h2>Lifestyle changes</h2> <p>So what practical advice can we give on the occasion of Christmas and New Year from the <a href="https://www.nobelprize.org/prizes/medicine/2017/advanced-information/">2017 Nobel Prize-winning field of chronobiology</a>? The field gained recognition for its discoveries into how internal clocks organise our physiology and enable us to live in harmony with the external rhythms of day and night.</p> <p>Findings from this field point to a simple lifestyle change: limiting when you eat to <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4255155/">eight to 10 hours</a> a day could protect you from developing obesity, or even lessen the negative health impacts of existing obesity. And time-restricted eating can work even if practised for only <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4255155/">five days per week</a>.</p> <p>Importantly, if you can reduce a long habitual eating window (for instance, 15 hours) to a time-restricted eating window of eight hours, you are likely to benefit more than someone who reduces a habitual eating window of 10 hours to eight hours. Reductions in eating-time windows have already <a href="https://www.nejm.org/doi/10.1056/NEJMoa2114833?url_ver=Z39.88-2003&amp;rfr_id=ori:rid:crossref.org&amp;rfr_dat=cr_pub%20%200pubmed">been found</a> to help some overweight humans lose weight, sleep better and feel more energised.</p> <p>Granted, much of the evidence comes from animal studies – and humans are certainly not big mice. Nonetheless, there have been no reports of detriments to this practice in humans. However, there has been <a href="https://www.sciencedirect.com/science/article/abs/pii/S0899900722001897?via%3Dihub">one report</a> of possible disadvantages to offspring in a pregnant animal model of time-restricted eating.</p> <h2>Late breakfast and early supper</h2> <p>Why not try what some studies suggest and <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9370396/">start time-restricted eating over Christmas</a>, or put it on your New Year’s resolution list?</p> <p>To get started, consider having a late breakfast and an early dinner. Of course, if in doubt about the impact of time-restricted eating – or if you have medical or dietary restrictions, or are pregnant – talk to your doctors first for advice.</p> <p>Beyond paying attention to calorie intake and food composition, “when we eat” is a relatively simple and potentially sustainable approach.<!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/195822/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https://theconversation.com/republishing-guidelines --></p> <p><a href="https://theconversation.com/profiles/thomas-c-erren-336309"><em>Thomas C. Erren</em></a><em>, Professor, <a href="https://theconversation.com/institutions/university-of-cologne-2576">University of Cologne</a>; <a href="https://theconversation.com/profiles/philip-lewis-429997">Philip Lewis</a>, Research associate, <a href="https://theconversation.com/institutions/university-of-cologne-2576">University of Cologne</a>, and <a href="https://theconversation.com/profiles/ursula-wild-1398207">Ursula Wild</a>, Research Associate, <a href="https://theconversation.com/institutions/university-of-cologne-2576">University of Cologne</a></em></p> <p><em>Image credits: Shutterstock </em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/festive-bulge-scientists-offer-advice-on-how-to-beat-overeating-195822">original article</a>.</em></p> </div>

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Australia's number one biscuit revealed

<p>Australia's favourite biscuit has been revealed. </p> <p>Arnott's sold more than 300 million packets of biscuits this year, and they have been tracking what has been sold the most. </p> <p>Now they have revealed the 10 most popular biscuits in their range - and it is not surprising that Tim Tam Original was the most popular biscuit in 2024. </p> <p>Despite previous complaint's of the price increase this year, the biscuit is still well-loved by Australians. </p> <p>The popular snack was followed by Barbecue Shapes, Chicken Crimpy Shapes, Pizza Shapes, and Jatz. </p> <p>In the last year, more than 13.4 million packets of Barbecue Shapes and more than 5.5 million gluten free biscuits were bought. </p> <p>While the original Tim Tam's took the number one spot, the double coat Tim Tam also went up in popularity taking the sixth spot, up from the eighth spot in 2023. </p> <p>Salada Original took the seventh spot, followed by Mint Slice, Scotch Finger, and Monte Carlo. </p> <p>“There’s nothing like a fresh bikkie debate to start the week and everyone hoping their favourites will make the top 10," Ranita Cowled, Business Director for Treating at Arnott’s told <em>news.com.au</em>. </p> <p>“Whether it be our iconic bikkies like Monte Carlo and Scotch Finger, or crowd favourites Jatz and Barbecue Shapes, it’s clear Aussies love a mix of classic, sweet, and savoury in 2024.</p> <p>“It’s fitting to see that as we close out the 60th birthday year for Tim Tam that the Original flavour has taken out the coveted #1 spot!”</p> <p><em>Images: Alex Cimbal / Shutterstock.com</em></p>

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How to make gravy (using chemistry)

<div class="theconversation-article-body"><a href="https://theconversation.com/profiles/nathan-kilah-599082">Nathan Kilah</a>, <em><a href="https://theconversation.com/institutions/university-of-tasmania-888">University of Tasmania</a></em></p> <p>“Gravy Day” is a relatively new date in the Australian calendar. Paul Kelly’s song <a href="https://theconversation.com/humbug-tinsel-and-gravy-in-search-of-the-perfect-christmas-pop-song-88924">How to Make Gravy</a> tells the story of a prisoner (Joe) writing to his brother on December 21. Joe laments missing the family Christmas celebrations and asks who will make gravy for the roast lunch in his absence.</p> <p>While a roast may not be everyone’s idea of the perfect <a href="https://theconversation.com/a-festive-feast-of-fish-and-fruit-the-creation-of-the-australian-christmas-dinner-151201">Christmas feast</a>, “Gravy Day” does give the opportunity to discuss the chemistry involved in making gravy – a thickened sauce made from drippings collected from roasted meats.</p> <h2>Give my love to Angus (beef?)</h2> <p>Roasting meat sets off a cascade of chemical reactions, producing myriad new flavour chemicals. More than <a href="https://link.springer.com/chapter/10.1007/978-1-4615-2143-3_10#:%7E:text=This%20has%20resulted%20in%20the,and%20lean%20components%20of%20meat.">1,000</a> flavour compounds have been identified in roasted meats.</p> <p>Each chemical gives its unique characteristics to the taste and smell of the finished roast. The chemical <a href="https://www.sciencedirect.com/science/article/pii/S0308814698000764">12-methyltridecanal</a> helps give roast beef its “beefy” flavour, while the sulfur-containing compound <a href="https://www.sciencedirect.com/science/article/pii/S0963996922004422">2-methyl-3-furanthiol</a> is more often found in roast chicken.</p> <p>There are three main types of chemical reactions taking place when roasting meats that produce flavour chemicals.</p> <p>The <a href="https://theconversation.com/kitchen-science-from-sizzling-brisket-to-fresh-baked-bread-the-chemical-reaction-that-makes-our-favourite-foods-taste-so-good-58577">Maillard reaction</a> is responsible for both colour and flavour. This broad reaction type takes place between amino acids from the protein and sugars and simple carbohydrates found in the meat.</p> <p>The Maillard reaction is also the chemistry responsible for many favourite flavours, including roasted coffee, chocolate, steak, toast and more.</p> <h2>A hundred degrees, even more maybe</h2> <p>The other main type of reaction occurring in a hot oven is the breakdown of fats by “<a href="https://doi.org/10.1016/j.foodres.2022.111385">lipid degradation</a>”. This can form hundreds of different chemical compounds. Many of these chemicals are described as “fatty”, “tallowy”, or smell like fried foods.</p> <p>The unique fat profiles found in different animals translate to the profile of flavour chemicals that form from lipid degradation when roasted. Further flavour compounds can arise through the third type of reactions combining products of Maillard reactions and lipid degradation.</p> <p>One specific flavour compound identified as having a “gravy aroma” is known as <a href="https://pubs.acs.org/doi/10.1021/jf9023189">3-mercapto-2-methylpentan-1-ol</a>. This compound comes from roasted vegetables, so including some veggies in your roasting pan will give you more depth of gravy flavour. Also, “cutting onions” is a useful excuse if listening to How to Make Gravy gets you feeling emotional.</p> <h2>The treasure and the trash</h2> <p>Roasting meats causes the fats to “render” and separate from the meat as a liquid. The fat pools in the tray with flavour-rich meat juices.</p> <p>While the fat and the water both carry flavour compounds, too much fat can give the finished gravy an unpleasant mouth feel, or can separate into layers when served.</p> <p>It’s worth pouring off the pan juices into a jug to allow the fat to separate from the liquid so you can control how much fat you’re adding. Be sure to dispose of the excess fat responsibly – <a href="https://theconversation.com/why-shouldnt-i-pour-oil-or-paint-down-the-sink-and-what-should-i-do-instead-206604">don’t pour it down the drain</a>.</p> <h2>Just add flour…</h2> <p>Flour (or, more specifically, starch) is the secret ingredient of a good gravy. Starches are <a href="https://www.sciencedirect.com/science/article/pii/S0168945222000474">large complex chemicals</a> that are made up of lots of sugars joined together.</p> <p>Starch granules are tightly packed and swell greatly when they absorb water. The swollen starch molecules forms a gel-like network that traps water and oil to give a thickened gravy.</p> <p>Wheat flour is most often used as the starch source. Corn and arrowroot starch can also be used. They have a higher percentage of starch than flour and a more neutral flavour.</p> <p>Wheat starch typically requires a larger quantity to be added and longer cooking to form a paste. Whichever starch you use, don’t add it too quickly or without mixing as you’ll form lumps.</p> <h2>…salt, red wine, and a dollop of tomato sauce</h2> <p>Salt is a common ingredient when preparing roast meats, both on the surface of the meat to draw out moisture and as a flavouring agent. The pan juices are typically concentrated as part of the gravy making process.</p> <p>Make sure you taste the gravy before seasoning, as salt will be concentrated by heating.</p> <p>Additional flavour components can be introduced by adding red wine, sherry, stock, or tomato sauce. These ingredients will broaden the flavour profile through sweetness (sugar), acidity (vinegar, citric and malic acids), and umami in the case of tomato sauce (natural glutamates, such as those found in MSG). Some folk even add Vegemite to their gravy for an extra umami boost.</p> <h2>I bet it will taste the same</h2> <p>If you happen to have screwed up your gravy this time, or are after convenience, then you can turn to an instant gravy powder. The main ingredient is typically maltodextrin or another corn-derived (and possibly chemically modified) starch.</p> <p>Shelf-stable powdered fats, salt, colours, and a range of <a href="https://theconversation.com/busting-the-myth-that-all-food-additives-are-bad-a-quick-guide-for-label-readers-82883">flavour additives</a> will be present in varying amounts depending on the style and price point of the product.</p> <p>The advantages of the instant version are speed and uniformity due to the carefully controlled commercial production.</p> <p>So unlike Joe’s concerns for his family’s gravy, an instant gravy will be more likely to taste the same, regardless of who ends up making it.<!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/219589/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https://theconversation.com/republishing-guidelines --></p> <p><em><a href="https://theconversation.com/profiles/nathan-kilah-599082">Nathan Kilah</a>, Senior Lecturer in Chemistry, <a href="https://theconversation.com/institutions/university-of-tasmania-888">University of Tasmania</a></em></p> <p><em>Image credits: Shutterstock </em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/how-to-make-gravy-using-chemistry-219589">original article</a>.</em></p> </div>

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A brief history of Christmas Pudding – and why it can actually be quite good for you

<div class="theconversation-article-body"><em><a href="https://theconversation.com/profiles/hazel-flight-536221">Hazel Flight</a>, <a href="https://theconversation.com/institutions/edge-hill-university-1356">Edge Hill University</a></em></p> <p>Even in these hard and strange times, Christmas will be celebrated and traditions upheld. And for many British households, Christmas dinner would not be complete without a Christmas pudding – traditionally served with brandy sauce, brandy butter or custard.</p> <p>The Christmas pudding originated in the <a href="http://medievalcookery.com/recipes/frumenty.html">14th-century</a> as a sort of porridge, originally known as “<a href="http://cookit.e2bn.org/historycookbook/1116-frumenty.html">frumenty</a>”, which bears little resemblance to the dessert we know today.</p> <p>It was <a href="https://historydollop.com/2020/03/15/frumenty-a-medieval-wheat-porridge/">originally made</a> with hulled wheat, boiled in milk, seasoned with cinnamon and coloured with saffron. It was associated with meatless days, lent and advent and was often served as a plain dish. But there are a <a href="https://www.epersianfood.com/frumenty/">variety of recipes</a> which included <a href="https://www.mumwhatelse.com/christmas-pudding-traditional-recipe/s">additions</a> such as beef, mutton, raisins, currants, prunes, wines and spices.</p> <p>In some instances, this was the staple food for Christmas eve, although in Yorkshire it was eaten first thing <a href="https://www.gutenberg.org/files/19098/19098-h/19098-h.htm">on Christmas morning</a>. In the 17th-century changes to the recipe were made. It was thickened with eggs, breadcrumbs, dried fruit and beer or spirits were added – and came to resemble something a bit more like a sweet pudding. However, it was the Victorians who fine tuned the recipe into the <a href="http://www.bbc.co.uk/shropshire/content/articles/2005/12/07/christmas_pudding_recipe_feature.shtml#:%7E:text=Brandy%20Sauce&amp;text=This%20stew%20was%20served%20as,to%20give%20the%20pudding%20richness">Christmas pudding</a> many of us enjoy today.</p> <p>A Christmas pudding should have 13 ingredients – that represent Jesus and the 12 disciples. Traditionally, these ingredients include: raisins, currants, suet, brown sugar, breadcrumbs, citron, lemon peel, orange peel, flour, mixed spices, eggs, milk and brandy. Brandy is also <a href="https://www.pudforallseasons.com.au/blog/christmas-pudding-history-and-traditions">traditionally</a> poured over the pudding and set alight. The flaming brandy is said to represent the passion of Christ.</p> <p>Christmas puddings were traditionally boiled in a “pudding cloth”, although today are usually steamed in a bowl. Presented on the table with a sprig of holly, they are then doused in brandy and set alight.</p> <p>The last Sunday before Advent became known as “<a href="https://www.goodhousekeeping.com/uk/christmas/christmas-countdown/a550045/ultimate-stir-up-sunday-when/">stir up Sunday</a>”. This was when the ingredients of the pudding would be assembled and stirred up in a bowl with a wooden spoon (representing the manger) from east to west – symbolising the journey taken by the three wise men. Traditionally, every family member stirs the pudding three times and makes a secret wish.</p> <p>Trinkets were always included in the traditional pudding. As a child I still remember the excitement of waiting to see who was going to <a href="https://metro.co.uk/2016/12/16/why-do-people-put-money-in-christmas-puddings-6327772/">find the sixpence</a>. Whoever found the coin was believed to have good fortune over the coming year.</p> <h2>A healthy pud?</h2> <p>Although the Christmas holidays can sometimes feel a little unhealthy – with a lot of sitting around and excessive food consumption – the ingredients that makeup a Christmas pudding are actually <a href="https://www.express.co.uk/life-style/health/365596/Why-Christmas-pudding-is-good-for-you">pretty nutritious</a>.</p> <p>Traditional Christmas puddings consists of fibre rich ingredients, such as fruits, nuts and currants. Dried fruits are rich in fibre, enzymes, polyphenols (substances with a <a href="https://www.ijmrhs.com/medical-research/dry-fruits-and-diabetes-mellitus.pdf">high antioxidant activity</a>), vitamins and minerals. <a href="https://www.bbc.co.uk/food/recipes/christmaspudding_71054">Sultanas, currants, apricots</a> and <a href="https://www.goodhousekeeping.com/uk/food/recipes/a557006/pear-and-ginger-pudding">pears</a> are highly nutritious and packed with <a href="https://www.webmd.com/diet/foods-rich-in-potassium">essential potassium and iron</a>. And although dried fruits can contain a lot of sugar, they have a lower glycemic index value so don’t impact your blood sugar in the same way as other sweet treats.</p> <p>Raisins are also rich in antimicrobial compounds, fibre and iron. These compounds lower the risk of heart disease and can relieve constipation. Prunes too can also aid with digestion, relieve constipation, reduce inflammation and protect cells from free radical damage.</p> <p>Walnuts, hazelnuts, pecans and almonds can also be added into the mix and these all come with a range of <a href="https://www.healthline.com/nutrition/benefits-of-walnuts">health benefits</a> – from <a href="https://www.nhs.uk/news/food-and-diet/nuts-may-lower-cholesterol/">lowering cholesterol levels</a> and reducing heart disease risk to delivering high levels of vitamin E, polyphenols and melatonin.</p> <p>The mixed spices, cinnamon, ginger, cloves, pimentos (or all spice) in a Christmas pudding are also an incredible source of <a href="https://food.ndtv.com/food-drinks/health-benefits-of-38-important-spices-from-around-the-world-1811783">aromatic antioxidants</a>. Spices aid digestion and have anti-inflammatory and anti-bacterial properties. They can supposedly even help to reduce bloating, cramps and nausea – key if you’ve been overdoing it a bit.</p> <p>There is one secret ingredient often overlooked but included in many recipes – <a href="https://www.lovefood.com/recipes/56899/christmas-pudding-recipe">the carrot</a>. Rich in beta-carotene, which the body utilises to produce Vitamin A, carrots are good for lowering cholesterol levels and, yes, for the health of your eyes.</p> <h2>A global tradition</h2> <p>Although a British tradition, the Christmas pudding is eaten in various countries including <a href="https://theconversation.com/how-christmas-pudding-evolved-with-australia-35027#:%7E:text=The%20Christmas%20pudding%20was%20there,usual%20rations%20at%20Christmas%20time">Australia</a> and <a href="https://www.foodandhome.co.za/recipes/karoo-steamed-christmas-pudding">South Africa</a>. The Canadians also have a version which includes <a href="https://cannedpeachesproject.com/canadian-christmas-pudding-recipe/">potatoes alongside the carrots</a>.</p> <p>The Christmas pudding even makes its way into literature, with Charles Dickens’ Christmas Carol making <a href="https://www.inliterature.net/food-in-literature/baked-goods/cakes/2012/12/a-christmas-carol-steamed-christmas-pudding.html">reference to it</a>. Then there is the case for Agatha Christie’s Hercule Poirot to solve in which he is advised to avoid the <a href="https://www.agathachristie.com/stories/the-adventure-of-the-christmas-pudding">plum pudding</a> – another name for the Christmas pud.</p> <figure><iframe src="https://www.youtube.com/embed/IFKJJVzRvGI?wmode=transparent&amp;start=0" width="440" height="260" frameborder="0" allowfullscreen="allowfullscreen"></iframe></figure> <p>One well known fact about the Christmas pudding is that there always seems to be some left over after Christmas day. In fact Christmas puddings of the past could last up to a year, so it was often shared out. Indeed, in 1885 a British newspaper reported the joyful consumption of a <a href="http://www.chinovalleyaz.net/DocumentCenter/View/5620/December-2019-Senior-Sentinel">plum pudding</a> – sent overland via special envoy from Tehran — to a group of British soldiers stationed in northwestern Afghanistan.</p> <p>If you don’t fancy posting a pudding there are a number of ways you can share and use the <a href="https://www.bbcgoodfood.com/howto/guide/10-ways-leftover-christmas-desserts">leftovers</a> – with a whole host of recipes from Christmas strudel to a black pudding breakfast replacement. Another firm favourite is Christmas pudding ice-cream - simply mix pudding with vanilla ice cream and enjoy!<!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/151160/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https://theconversation.com/republishing-guidelines --></p> <p><em><a href="https://theconversation.com/profiles/hazel-flight-536221">Hazel Flight</a>, Programme Lead Nutrition and Health, <a href="https://theconversation.com/institutions/edge-hill-university-1356">Edge Hill University</a></em></p> <p><em>Image credits: Shutterstock </em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/a-brief-history-of-christmas-pudding-and-why-it-can-actually-be-quite-good-for-you-151160">original article</a>.</em></p> </div>

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What’s the difference between gelato and ice cream? One contains more air

<div class="theconversation-article-body"><em><a href="https://theconversation.com/profiles/evangeline-mantzioris-153250">Evangeline Mantzioris</a>, <a href="https://theconversation.com/institutions/university-of-south-australia-1180">University of South Australia</a></em></p> <p>As the weather gets warmer, it’s the perfect time for ice cream or a gelato. Who am I kidding? It’s the perfect time year round.</p> <p>But what’s the difference between gelato and ice cream?</p> <p>Not everyone agrees. Some people say they’re made with <a href="https://www.foodandwine.com/gelato-vs-ice-cream-8609179">different amounts of fat</a>. Others say it’s all about the <a href="https://www.thespruceeats.com/whats-the-difference-between-gelato-and-ice-cream-909197#:%7E:text=Gelato%20is%20churned%20at%20a,much%20as%2050%20percent%20air.">air content</a>.</p> <p>To add to the confusion, gelato is the Italian word for any type of ice cream. But in Australia, gelato refers to the frozen dessert of Italian origin.</p> <h2>How are they similar?</h2> <p>Ice cream and gelato are both sweet desserts served cold. They both contain varying amounts of cream, milk, sugar, flavours, and sometimes eggs.</p> <p>The fat component from the cream provides the richness, smoothness and body. Eggs are normally associated with gelato but can also be added to ice cream to enhance the richness.</p> <p>Most commercial ice creams and gelato also contain <a href="https://theconversation.com/are-emulsifiers-bad-not-enough-evidence-to-say-we-should-stop-eating-them-121325">emulsifiers</a>. These are food additives that act as a stabiliser by preventing liquids that normally don’t mix from separating. Emulsifiers <a href="https://www.nature.com/articles/s41575-024-00893-5#Sec11">have been linked</a> to <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC11345991/">numerous gut symptoms</a>. However most of the evidence comes from laboratory and animal studies, and there is <a href="https://www.nature.com/articles/s41575-024-00893-5/tables/2">limited robust evidence of this in humans</a>.</p> <p>Ice cream and gelato are both made by churning (whipping) the ingredients, leading to air bubbles forming. In fact, it’s the air bubbles that allow us to eat these desserts frozen. It gives them a palatable texture and mouthfeel by making the mixture softer and lighter. Imagine how hard it would be to eat a hard lump of frozen dessert.</p> <p>Many people assume both ice cream and gelato are good sources of calcium, presumably because they’re made from dairy products. But due to the low proportions of milk (it’s mostly cream, which contains less calcium), they both only provide about 65 milligrams of calcium per half cup. That’s <a href="https://www.eatforhealth.gov.au/nutrient-reference-values/nutrients/calcium">about 7%</a> of the daily calcium requirements for adults aged 19-50.</p> <p>They also both contain small amounts of protein – about 2-3 grams per half cup. That’s only about 5% of your <a href="https://www.eatforhealth.gov.au/nutrient-reference-values/nutrients/protein">daily protein requirements</a>.</p> <p>So ice cream and gelato are not a valuable source of calcium and protein, making them of low nutritional value. That’s why they’re regarded as “<a href="https://www.eatforhealth.gov.au/guidelines/australian-guide-healthy-eating">sometimes</a>” foods.</p> <figure class="align-center "><img src="https://images.theconversation.com/files/633714/original/file-20241121-15-36t0ln.png?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/633714/original/file-20241121-15-36t0ln.png?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=600&amp;h=455&amp;fit=crop&amp;dpr=1 600w, https://images.theconversation.com/files/633714/original/file-20241121-15-36t0ln.png?ixlib=rb-4.1.0&amp;q=30&amp;auto=format&amp;w=600&amp;h=455&amp;fit=crop&amp;dpr=2 1200w, https://images.theconversation.com/files/633714/original/file-20241121-15-36t0ln.png?ixlib=rb-4.1.0&amp;q=15&amp;auto=format&amp;w=600&amp;h=455&amp;fit=crop&amp;dpr=3 1800w, https://images.theconversation.com/files/633714/original/file-20241121-15-36t0ln.png?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;h=572&amp;fit=crop&amp;dpr=1 754w, https://images.theconversation.com/files/633714/original/file-20241121-15-36t0ln.png?ixlib=rb-4.1.0&amp;q=30&amp;auto=format&amp;w=754&amp;h=572&amp;fit=crop&amp;dpr=2 1508w, https://images.theconversation.com/files/633714/original/file-20241121-15-36t0ln.png?ixlib=rb-4.1.0&amp;q=15&amp;auto=format&amp;w=754&amp;h=572&amp;fit=crop&amp;dpr=3 2262w" alt="Gelato vs ice cream" /><figcaption><span class="attribution"><span class="source">The Conversation</span>, <a class="license" href="http://creativecommons.org/licenses/by-sa/4.0/">CC BY-SA</a></span></figcaption></figure> <h2>How are they different?</h2> <p><strong>It’s about the air</strong></p> <p>The <a href="https://www.google.com.au/books/edition/On_Food_and_Cooking/bKVCtH4AjwgC?hl=en&amp;gbpv=1&amp;pg=PA8&amp;printsec=frontcover">speed</a> at which the mixture is churned can determine the amount of air it contains. This impacts the product’s thickness and smoothness.</p> <p>Ice cream is traditionally <a href="https://www.google.com.au/books/edition/On_Food_and_Cooking/bKVCtH4AjwgC?hl=en&amp;gbpv=1&amp;pg=PA8&amp;printsec=frontcover">churned faster</a> <a href="https://eu.venchi.com/blog/italian-gelato-vs-icecream">than gelato</a>. This means more air is incorporated, making it feel fluffy and creamy compared to gelato, which tends to feels thicker and richer.</p> <p><strong>It’s about the ice</strong></p> <p>Churning at a slower speed, as you would typically for gelato, also <a href="https://www.google.com.au/books/edition/On_Food_and_Cooking/bKVCtH4AjwgC?hl=en&amp;gbpv=1&amp;pg=PA8&amp;printsec=frontcover">increases the size of ice crystals</a>. Large ice crystals give a coarse icy texture, compared to a creamier texture from smaller ice crystals in ice cream.</p> <p><strong>How about the fat?</strong></p> <p>Although many websites say ice cream <a href="https://www.foodandwine.com/gelato-vs-ice-cream-8609179">contains more fat</a> than gelato, this is a tricky one to tease out.</p> <p>In Australia, <a href="https://www.legislation.gov.au/F2015L00424/latest/text">food standards</a> say ice cream should contain at least 100g milk fat per kilogram (or 10% milk fat).</p> <p>So products with less fat need to be called something else – frozen dessert, iced confection, even gelato. So, in theory, a lower-fat product made the same way as ice cream could be called gelato. Non-dairy products made the same way as ice cream could also be called gelato.</p> <p>So how much milk fat does gelato need to contain? I can’t find any legal requirements in Australia or elsewhere. <a href="https://www.masterclass.com/articles/ice-cream-vs-gelato-vs-sherbet-vs-sorbet">Cooking websites</a> often refer to it having 4-9% milk fat. But depending on the recipe, it could be higher.</p> <p>Fat content also differs from flavour to flavour. For example, if you compare the nutritional content of half a cup of vanilla ice cream with half a cup of vanilla gelato, the ice cream has 2g more fat. Other flavours will give different results.</p> <p><strong>How about the sugar or kilojules?</strong></p> <p>If we just compare half a cup of vanilla ice cream with half a cup of vanilla gelato, the gelato has about 3g more sugar. Again, different flavours will give different results. The difference in kilojoules is very small – 15kJ per half cup.</p> <h2>Overall, which one’s healthier?</h2> <p>Effectively there is little difference nutritionally between ice cream and gelato.</p> <p>But brands and flavours vary considerably. They each use different amounts of cream, eggs and other ingredients. So kilojoule, fat and sugar content can vary considerably too.</p> <p>Should you still eat them? Yes, absolutely if you enjoy them. However, both are classified as sometimes foods due to their added sugar and low level of nutrients. And perhaps limit your serve size.<!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/238988/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https://theconversation.com/republishing-guidelines --></p> <p><em><a href="https://theconversation.com/profiles/evangeline-mantzioris-153250">Evangeline Mantzioris</a>, Program Director of Nutrition and Food Sciences, Accredited Practising Dietitian, <a href="https://theconversation.com/institutions/university-of-south-australia-1180">University of South Australia</a></em></p> <p><em>Image credits: Shutterstock </em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/whats-the-difference-between-gelato-and-ice-cream-one-contains-more-air-238988">original article</a>.</em></p> </div>

Food & Wine

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The delicious Christmas tipple sure to whisk you away

<p dir="ltr">With the festive season in full swing, it’s time to start thinking about presents that make a lasting impression. </p> <p dir="ltr">Despite who you’re buying for, it's hard to look past the perfect tipple to gift your loved ones on Christmas day. </p> <p dir="ltr">Whether you're looking for the perfect gift, or a delectable drink to showcase at a festive gathering, Glen Moray’s Classic Single Malt Whisky is the perfect option this year. </p> <p dir="ltr">From first being brewed in the north of Scotland over 120 years ago, Glen Moray has long been a pioneer for rich, smooth and heavenly whisky, combining tradition, skill and passion into every glass. </p> <p dir="ltr">This unpeated single malt offers a smooth, light profile that will appeal to all whisky drinkers this Christmas season. </p> <blockquote class="instagram-media" style="background: #FFF; border: 0; border-radius: 3px; box-shadow: 0 0 1px 0 rgba(0,0,0,0.5),0 1px 10px 0 rgba(0,0,0,0.15); margin: 1px; max-width: 540px; min-width: 326px; padding: 0; width: calc(100% - 2px);" data-instgrm-permalink="https://www.instagram.com/p/DB6oNqPsiEJ/?utm_source=ig_embed&utm_campaign=loading" data-instgrm-version="14"> <div style="padding: 16px;"> <div style="display: flex; flex-direction: row; align-items: center;"> <div style="background-color: #f4f4f4; border-radius: 50%; flex-grow: 0; height: 40px; margin-right: 14px; width: 40px;"> </div> <div style="display: flex; flex-direction: column; flex-grow: 1; justify-content: center;"> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 100px;"> </div> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; width: 60px;"> </div> </div> </div> <div style="padding: 19% 0;"> </div> <div style="display: block; height: 50px; margin: 0 auto 12px; width: 50px;"> </div> <div style="padding-top: 8px;"> <div style="color: #3897f0; font-family: Arial,sans-serif; font-size: 14px; font-style: normal; font-weight: 550; line-height: 18px;">View this post on Instagram</div> </div> <div style="padding: 12.5% 0;"> </div> <div style="display: flex; flex-direction: row; margin-bottom: 14px; align-items: center;"> <div> <div style="background-color: #f4f4f4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(0px) translateY(7px);"> </div> <div style="background-color: #f4f4f4; height: 12.5px; transform: rotate(-45deg) translateX(3px) translateY(1px); width: 12.5px; flex-grow: 0; margin-right: 14px; margin-left: 2px;"> </div> <div style="background-color: #f4f4f4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(9px) translateY(-18px);"> </div> </div> <div style="margin-left: 8px;"> <div style="background-color: #f4f4f4; border-radius: 50%; flex-grow: 0; height: 20px; width: 20px;"> </div> <div style="width: 0; height: 0; border-top: 2px solid transparent; border-left: 6px solid #f4f4f4; border-bottom: 2px solid transparent; transform: translateX(16px) translateY(-4px) rotate(30deg);"> </div> </div> <div style="margin-left: auto;"> <div style="width: 0px; border-top: 8px solid #F4F4F4; border-right: 8px solid transparent; transform: translateY(16px);"> </div> <div style="background-color: #f4f4f4; flex-grow: 0; height: 12px; width: 16px; transform: translateY(-4px);"> </div> <div style="width: 0; height: 0; border-top: 8px solid #F4F4F4; border-left: 8px solid transparent; transform: translateY(-4px) translateX(8px);"> </div> </div> </div> <div style="display: flex; flex-direction: column; flex-grow: 1; justify-content: center; margin-bottom: 24px;"> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 224px;"> </div> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; width: 144px;"> </div> </div> <p style="color: #c9c8cd; font-family: Arial,sans-serif; font-size: 14px; line-height: 17px; margin-bottom: 0; margin-top: 8px; overflow: hidden; padding: 8px 0 7px; text-align: center; text-overflow: ellipsis; white-space: nowrap;"><a style="color: #c9c8cd; font-family: Arial,sans-serif; font-size: 14px; font-style: normal; font-weight: normal; line-height: 17px; text-decoration: none;" href="https://www.instagram.com/p/DB6oNqPsiEJ/?utm_source=ig_embed&utm_campaign=loading" target="_blank" rel="noopener">A post shared by Glen Moray (@glen_moray_whisky)</a></p> </div> </blockquote> <p dir="ltr">It's a drink that truly impresses, offering a complexity and refinement that will captivate even the most discerning whisky lovers. </p> <p dir="ltr">Gifted or served during a festive celebration, it's sure to be the highlight of the party, something guests will remember and savour. </p> <p dir="ltr">It also makes the perfect gift choice for those who appreciate the finer things in life.</p> <p dir="ltr">Whether served as a <a href="https://www.glenmoray.com/find-your-best-serve">cocktail</a> or just on its own, it's easy to see why Glen Moray has become such a staple of luxurious whiskeys, without the extortionate price tag.</p> <p dir="ltr">You can pick up your Glen Moray <a href="https://www.danmurphys.com.au/product/DM_903515/glen-moray-classic-single-malt-scotch-whisky-700ml?isFromSearch=false&isPersonalised=false&isSponsored=false&state=6&pageName=member_offers">Dan Murphy’s</a> and <a href="https://bws.com.au/product/903515/glen-moray-classic-single-malt-scotch-whisky-700ml">BWS</a> for just $66.99, proving you can spoil your loved ones - or yourself - without breaking the bank this Christmas. </p> <p dir="ltr"><em>Image credits: Supplied</em></p>

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Feed your family on a budget this Christmas with Aldi’s delectable hams

<p dir="ltr">Aldi’s range of delicious Christmas feasts have made it easier than ever to go ham this festive season. </p> <p dir="ltr">The iconic supermarket, known for their low prices and high quality goods, have released their range of seven delectable ham options from just $7.99 per kilogram, catering to shoppers on every budget. </p> <p dir="ltr">The incredibly priced Australian Half Leg Ham is back with a bang this yearat only $7.99 p/kg (that’s 40 cents per serve!), with options to Go A Little Extra with a Triple Smoked Boneless Ham ($12.99 p/kg), or the crowd favourite Crackling Ham ($19.99 p/kg). </p> <p dir="ltr">For those looking for a festive feast for a smaller gathering, there is also an Australian Quarter Portion Leg Ham ($11.49 p/kg) or the NEW Lightly Smoked Boneless Ham Portion ($19.99 /kg). </p> <p dir="ltr">For those looking to jazz up their hams to impress their loved ones, Aldi has also shared two easy to follow recipes for heavenly glazes, with dozens of recipes available on the extensive new <a href="https://www.aldi.com.au/recipes/christmas-recipes/">online recipe hub</a>.</p> <p dir="ltr">This year, Aldi’s two feature glazes are the mouth-watering <a href="https://www.aldi.com.au/recipes/christmas-recipes/christmas-dinner-recipes/pomegranate-and-maple-glazed-ham-recipe/">Pomegranate and Maple Glaze</a>, and the Brown Sugar Honey Pineapple Glaze.</p> <p dir="ltr">For your Pomegranate and Maple Glazed Ham, you’ll need just four ingredients, totalling $1.18 per serve for six people. </p> <p dir="ltr"><strong>Pomegranate and Maple Glazed Ham </strong></p> <ul> <li dir="ltr" aria-level="1"> <p dir="ltr" role="presentation">160g pomegranate seeds </p> </li> <li dir="ltr" aria-level="1"> <p dir="ltr" role="presentation">125ml Brookdale maple syrup </p> </li> <li dir="ltr" aria-level="1"> <p dir="ltr" role="presentation">1 tsp Colway dijon mustard </p> </li> <li dir="ltr" aria-level="1"> <p dir="ltr" role="presentation">½ tsp Stonemill ground ginger </p> </li> </ul> <p dir="ltr">For the Brown Sugar Honey Pineapple Glaze, you’ll need five ingredients, coming to a mere 45 cents per serve, with the recipe serving between 12 and 18 people. </p> <p dir="ltr"><strong>Brown Sugar Honey Pineapple Glaze </strong></p> <ul> <li dir="ltr" aria-level="1"> <p dir="ltr" role="presentation">275g White Mill brown sugar </p> </li> </ul> <ul> <li dir="ltr" aria-level="1"> <p dir="ltr" role="presentation">300g pineapple juice </p> </li> <li dir="ltr" aria-level="1"> <p dir="ltr" role="presentation">280g Bramwells Yellow Box Honey</p> </li> <li dir="ltr" aria-level="1"> <p dir="ltr" role="presentation">2 Tbsp Colway Dijon mustard </p> </li> <li dir="ltr" aria-level="1"> <p dir="ltr" role="presentation">75g Pure Valley Unsalted Butter</p> </li> </ul> <p dir="ltr">For more festive recipes, from roasts and sides, to desserts and drinks, make sure to check out the Aldi online recipe hub, and don’t forget to pick up your scrumptious Aldi ham to feed your family without breaking the bank this Christmas. </p> <p dir="ltr"><em>Image credits: Supplied</em></p>

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What’s the difference between MSG and table salt? A chemist explains

<div class="theconversation-article-body"><em><a href="https://theconversation.com/profiles/nathan-kilah-599082">Nathan Kilah</a>, <a href="https://theconversation.com/institutions/university-of-tasmania-888">University of Tasmania</a></em></p> <p>It’s dinner time. You’ve worked hard to prepare a nutritious and tasty meal. But after taking your first bite you feel something is missing. Perhaps you should have added more salt? Pepper? Or maybe even something more exotic like monosodium glutamate, better known as MSG?</p> <p>There are many <a href="https://theconversation.com/explainer-what-are-e-numbers-and-should-you-avoid-them-in-your-diet-43908">food additives</a> used in both home cooking and commercial products. These ingredients improve the flavour, smell, texture, appearance and longevity of foods.</p> <p>Salt and MSG are two well-known food additives. Both contain sodium, but there are plenty of differences which you can use to your benefit.</p> <h2>What is a salt?</h2> <p>Salts are made of positively and negatively charged components called ions. Salts generally dissolve in water, and are brittle. The names of salts often feature a metal (positively charged) followed by a non-metal (negatively charged).</p> <p>The common kitchen ingredient we call “salt” is just one type of salt. To distinguish it from all other salts, we should more specifically refer to it as “table salt”. Chemically, it’s sodium chloride.</p> <h2>Sodium chloride</h2> <p>After the quick chemistry lesson above, we can see that table salt, sodium chloride, contains a positively charged sodium and a negatively charged chlorine.</p> <p>These charged components are arranged in crystals of salt in a regular repeating pattern. Each sodium ion is surrounded by six chloride ions and each chloride ion is surrounded by six sodium ions. This arrangement gives the crystal a “cubic” form. If you look closely at salt, you may see cube-shaped crystals.</p> <figure class="align-center zoomable"><a href="https://images.theconversation.com/files/617802/original/file-20240906-16-gk38c9.jpg?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=1000&amp;fit=clip"><img src="https://images.theconversation.com/files/617802/original/file-20240906-16-gk38c9.jpg?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/617802/original/file-20240906-16-gk38c9.jpg?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=600&amp;h=600&amp;fit=crop&amp;dpr=1 600w, https://images.theconversation.com/files/617802/original/file-20240906-16-gk38c9.jpg?ixlib=rb-4.1.0&amp;q=30&amp;auto=format&amp;w=600&amp;h=600&amp;fit=crop&amp;dpr=2 1200w, https://images.theconversation.com/files/617802/original/file-20240906-16-gk38c9.jpg?ixlib=rb-4.1.0&amp;q=15&amp;auto=format&amp;w=600&amp;h=600&amp;fit=crop&amp;dpr=3 1800w, https://images.theconversation.com/files/617802/original/file-20240906-16-gk38c9.jpg?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;h=754&amp;fit=crop&amp;dpr=1 754w, https://images.theconversation.com/files/617802/original/file-20240906-16-gk38c9.jpg?ixlib=rb-4.1.0&amp;q=30&amp;auto=format&amp;w=754&amp;h=754&amp;fit=crop&amp;dpr=2 1508w, https://images.theconversation.com/files/617802/original/file-20240906-16-gk38c9.jpg?ixlib=rb-4.1.0&amp;q=15&amp;auto=format&amp;w=754&amp;h=754&amp;fit=crop&amp;dpr=3 2262w" alt="" /></a><figcaption><span class="caption">The chemical structure of table salt forms a cube of sodium and chloride ions.</span> <span class="attribution"><a class="source" href="https://www.shutterstock.com/image-vector/sodium-chloride-nacl-structure-ionic-crystal-2417242373">Sandip Neogi/Shutterstock</a></span></figcaption></figure> <p>Sodium chloride is very abundant. It is found <a href="https://theconversation.com/i-have-always-wondered-why-is-the-sea-salty-83489">dissolved in Earth’s oceans</a>. Mineral deposits of salt, known as halite or rock salt, formed from the evaporation and crystallisation of ancient seas.</p> <p>Depending on the source, the salt may contain many other trace minerals that can even add colour to it, such as the pink-coloured Himalayan salt from Pakistan. Salt can also be fortified with <a href="https://www.who.int/publications/i/item/9789240053717">sodium iodide</a> as a public health measure.</p> <p>Describing the taste of salt is quite difficult without using the word “salty”. It’s a very common food additive, as it is so abundant and versatile. It is an essential ingredient for many traditional food preservation techniques for meats (pork and fish), vegetables (kimchi, sauerkraut and pickles), and dairy (cheese and butter).</p> <p>Salt is considered a universal flavouring agent. It can mask bitter flavours and bring out sweet, sour and <a href="https://theconversation.com/the-asian-roots-of-umami-the-fifth-taste-central-to-thanksgiving-fare-50699">umami</a> (savoury) ones.</p> <p>Despite popular depictions of <a href="https://theconversation.com/that-neat-and-tidy-map-of-tastes-on-the-tongue-you-learned-in-school-is-all-wrong-44217">taste maps</a>, there is no one place on the tongue where we taste salt. Other sodium salts can also give a “salty” taste, but the effect declines (and can even turn to bitter) with negatively charged components other than chloride.</p> <h2>MSG or monosodium glutamate</h2> <p>Monosodium glutamate is also a salt. The glutamate is the negatively charged form of glutamic acid, an amino acid that is found in nature as a building block of proteins.</p> <p>MSG, and more generally glutamates, are found in a wide range of foods including tomatoes, Parmesan cheese, soy sauce, dried seaweeds, Worcestershire sauce and protein-rich foods. All of these foods impart umami flavours, which are described as savoury or meaty.</p> <p>Commercial MSG is not extracted from the environment but produced by bacterial fermentation. Glucose is converted to glutamic acid, which is further processed by adding sodium hydroxide to form MSG (and water).</p> <p>MSG is sold as crystals, but they have a long, prismatic shape rather than the cubic form of sodium chloride. It’s worth tasting a few crystals of MSG directly to experience the native taste of umami.</p> <p>Despite decades of bad press and concern, <a href="https://theconversation.com/msg-is-back-is-the-idea-its-bad-for-us-just-a-myth-or-food-science-237871">MSG is considered safe</a> to consume in the concentrations typically found in or added to foods.</p> <p>Table salt and MSG both contain sodium, but at different percentages of the total weight: table salt has around 40% sodium, versus just 14% in MSG. You are also more likely to be routinely adding table salt to your food rather than MSG.</p> <p>Eating too much sodium is well known to be unhealthy. <a href="https://theconversation.com/this-salt-alternative-could-help-reduce-blood-pressure-so-why-are-so-few-people-using-it-221409">Potassium-enriched substitutes</a> have been suggested for a range of health benefits.</p> <h2>A flavour enhancer</h2> <p>The flavour of MSG can be elevated further by combining it with other food additives, known as sodium ribonucleotides.</p> <p>Japanese and Korean cooks figured this secret out long before chemists, as boiling dried fish and seaweed produces foundation stocks (dashi) containing a mix of naturally sourced glutamates and ribonucleotides.</p> <p>Ribonucleotides are classified as “generally considered as safe” by <a href="https://www.cfsanappsexternal.fda.gov/scripts/fdcc/index.cfm?set=FoodSubstances&amp;id=DISODIUMINOSINATE&amp;sort=Sortterm_ID&amp;order=ASC&amp;startrow=1&amp;type=basic&amp;search=disodium">food standards authorities</a>. Humans consume many grams of the natural equivalent in their diets.</p> <p>What can be more problematic are the carbohydrates- and fat-rich foods that have their flavours enhanced, which can potentially lead us to eat excessive calories.</p> <p>The combination of MSG and ribonucleotides produces a more-ish sensation. Next time you see a bag of potato chips or instant noodles, have a quick look to see if it contains both MSG (E621) and a ribonucleotide source (E627–E635).</p> <p>I personally keep a jar of MSG in my kitchen. A little goes a long way to elevate a soup, stew or sauce that isn’t quite tasting the way you want it to, but without adding too much extra sodium.<!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/237668/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https://theconversation.com/republishing-guidelines --></p> <p><em><a href="https://theconversation.com/profiles/nathan-kilah-599082">Nathan Kilah</a>, Senior Lecturer in Chemistry, <a href="https://theconversation.com/institutions/university-of-tasmania-888">University of Tasmania</a></em></p> <p><em>Image credits: Shutterstock </em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/whats-the-difference-between-msg-and-table-salt-a-chemist-explains-237668">original article</a>.</em></p> </div>

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Matcha is having a moment. What are the health benefits of this green tea drink?

<div class="theconversation-article-body"> <p><em><a href="https://theconversation.com/profiles/evangeline-mantzioris-153250">Evangeline Mantzioris</a>, <a href="https://theconversation.com/institutions/university-of-south-australia-1180">University of South Australia</a></em></p> <p>Matcha has experienced a surge in popularity in recent months, leading to reports of <a href="https://www.smh.com.au/goodfood/sydney-eating-out/global-matcha-shortage-hits-australia-as-skyrocketing-popularity-rivals-coffee-20241101-p5kn6v.html">global shortages</a> and price increases.</p> <p>If you haven’t been caught up in the craze, matcha is a powdered version of green tea. On a cafe menu you might see a hot or iced matcha latte, or even a matcha-flavoured cake or pastry. A quick google brings up <a href="https://www.foodandwine.com/tea/matcha-tea/matcha-recipes">countless recipes</a> incorporating matcha, both sweet and savoury.</p> <p>Retailers and cafe owners <a href="https://www.smh.com.au/goodfood/sydney-eating-out/global-matcha-shortage-hits-australia-as-skyrocketing-popularity-rivals-coffee-20241101-p5kn6v.html">have suggested</a> the main reasons for matcha’s popularity include its “instagrammable” looks and its purported health benefits.</p> <p>But what are the health benefits of matcha? Here’s what the evidence says.</p> <h2>First, what is matcha?</h2> <p><a href="https://www.mdpi.com/1420-3049/26/1/85">Matcha</a> is a finely ground powder of green tea leaves, which come from the plant <em>Camellia sinensis</em>. This is the same plant used to make green and black tea. However, the <a href="https://naokimatcha.com/blogs/articles/how-matcha-is-made-in-japan">production process</a> differentiates matcha from green and black tea.</p> <p>For matcha, the tea plant is grown in shade. Once the leaves are harvested, they’re steamed and dried and the stems are removed. Then the leaves are carefully ground at controlled temperatures to form the powder.</p> <p>The <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC6571865/">production process</a> for green tea is simpler. The leaves are picked from the unshaded plants, heated and then dried. We then steep the dried leaves in hot water to get tea (whereas with matcha the whole leaf is consumed).</p> <p>With black tea, after the leaves are picked they’re exposed to air, which leads to oxidation. This makes the leaves black and gives the tea a different flavour.</p> <h2>A source of phytonutrients</h2> <p>Phytonutrients are <a href="https://theconversation.com/phytonutrients-can-boost-your-health-here-are-4-and-where-to-find-them-including-in-your-next-cup-of-coffee-132100">chemical compounds found in plants</a> which have a range of benefits for human health. Matcha contains several.</p> <p>Chlorophyll gives plants such as <em>Camellia sinensis</em> their green colour. There’s some evidence chlorophyll may have <a href="https://www.mdpi.com/2223-7747/12/7/1533">health benefits</a> – including anti-inflammatory, anti-cancer and anti-obesity effects – due to its antioxidant properties. Antioxidants neutralise free radicals, which are unstable molecules that harm our cells.</p> <p>Theanine has been shown to <a href="https://www.mdpi.com/2504-3900/91/1/32">improve sleep</a> and <a href="https://link.springer.com/article/10.1007/s11130-019-00771-5?crsi=662497574&amp;cicada_org_src=healthwebmagazine.com&amp;cicada_org_mdm=direct">reduce stress and anxiety</a>. The only <a href="https://www.sciencedirect.com/topics/medicine-and-dentistry/theanine">other known</a> dietary source of theanine is mushrooms.</p> <p>Caffeine is a phytonutrient we know well. Aside from increasing alertness, caffeine has also demonstrated <a href="https://www.tandfonline.com/doi/full/10.1080/10408398.2022.2074362?casa_token=ADALIs6M3iAAAAAA%3AXpY35se0zLddAEIbZAaeCcDaNWm94s2WJaDHfXDRvVZgYq_xTxsCFuvtrtNXMXAL9uNIvLlYzO30aA#abstract">antioxidant effects</a> and some protection against a range of chronic and neurodegenerative diseases. However, too much caffeine can have negative side effects.</p> <p>Interestingly, shading the plants while growing appears to <a href="https://scijournals.onlinelibrary.wiley.com/doi/pdfdirect/10.1002/jsfa.9112?casa_token=KxVD9i9p4BsAAAAA:OwGTauXFHAndyJkam8WuXrmGQ2k1kaSRu5pOqJOrhSyRSeWkDwdrI23qaD5WVH1HGqZLFdsjP9ZTvolw">change the nutritional composition</a> of the leaf and may lead to higher levels of these phytonutrients in matcha compared to green tea.</p> <p>Another compound worth mentioning is called catechins, of which there are several different types. Matcha powder similarly has <a href="https://theconversation.com/matcha-tea-what-the-current-evidence-says-about-its-health-benefits-202782">more catechins</a> than green tea. They are strong antioxidants, which <a href="https://link.springer.com/article/10.1186/s41702-020-0057-8">have been shown</a> to have protective effects against bacteria, viruses, allergies, inflammation and cancer. Catechins <a href="https://www.sciencedirect.com/topics/medicine-and-dentistry/catechin#:%7E:text=Catechin%20is%20naturally%20present%20in,containing%20many%20catechins%20%5B130%2C131%5D.">are also found</a> in apples, blueberries and strawberries.</p> <h2>What are the actual health benefits?</h2> <p>So we know matcha contains a variety of phytonutrients, but does this translate to noticeable health benefits?</p> <p>A review published in 2023 identified only <a href="https://www.sciencedirect.com/science/article/pii/S2665927122002180">five experimental studies</a> that have given matcha to people. These studies gave participants about 2–4g of matcha per day (equivalent to 1–2 teaspoons of matcha powder), compared to a placebo, as either a capsule, in tea or in foods. Matcha decreased stress and anxiety, and improved memory and cognitive function. There was no effect on mood.</p> <p>A <a href="https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0309287">more recent study</a> showed 2g of matcha in older people aged 60 to 85 improved sleep quality. However, in <a href="https://www.mdpi.com/2072-6643/16/17/2907">younger people</a> aged 27 to 64 in another study, matcha had little effect on sleep.</p> <p>A <a href="https://link.springer.com/article/10.1007/s11130-022-00998-9">study in people with obesity</a> found no difference in the weight loss observed between the matcha group and the control group. This study did not randomise participants, and people knew which group they had been placed in.</p> <p>It could be hypothesised that given you consume all of the leaf, and given levels of some phytonutrients may be higher due to the growing conditions, matcha may have more nutritional benefits than green tea. But to my knowledge there has been no direct comparison of health outcomes from green tea compared to matcha.</p> <h2>There’s lots of evidence for green tea</h2> <p>While to date a limited number of studies have looked at matcha, and none compared matcha and green tea, there’s quite a bit of research on the health benefits of drinking green tea.</p> <p>A <a href="https://www.sciencedirect.com/science/article/pii/S0944711317300867?casa_token=dpbAEQQ7Is4AAAAA:U6aggqZM_G0KJ8hkhx0TGSvQywr4utlgKzwUnUj9x5t9eWd-FKENjbTvUv6s4TBTaPYrob-qQkk">systematic review of 21 studies</a> on green tea has shown similar benefits to matcha for improvements in memory, plus evidence for mood improvement.</p> <p>There’s also evidence green tea provides other health benefits. Systematic reviews have shown green tea leads to <a href="https://onlinelibrary.wiley.com/doi/full/10.1002/ptr.6697?casa_token=1eAbmeGillYAAAAA%3ABNGBB6EuRFXIDWHgsa7E798wfC0MQK2r3yOmAlFzR2sxyD9Xt837VoCel0l6Tsh3RRO19t-YUm1GqO7Y">weight loss in people with obesity</a>, lower levels of <a href="https://link.springer.com/article/10.1186/s12937-020-00557-5">certain types of cholesterol</a>, and <a href="https://journals.lww.com/md-journal/fulltext/2020/02070/Effect_of_green_tea_supplementation_on_blood.36.aspx/1000">reduced blood pressure</a>. Green tea may also <a href="https://www.nature.com/articles/s41430-020-00710-7">lower the risk of certain types of cancer</a>.</p> <p>So, if you can’t get your hands on matcha at the moment, drinking green tea may be a good way to get your caffeine hit.</p> <p>Although the evidence on green tea provides us with some hints about the health benefits of matcha, we can’t be certain they would be the same. Nonetheless, if your local coffee shop has a good supply of matcha, there’s nothing to suggest you shouldn’t keep enjoying matcha drinks.</p> <p>However, it may be best to leave the matcha croissant or cronut for special occasions. When matcha is added to foods with high levels of added sugar, salt and saturated fat, any health benefits that could be attributed to the matcha may be negated.<!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/242775/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https://theconversation.com/republishing-guidelines --></p> <p><em><a href="https://theconversation.com/profiles/evangeline-mantzioris-153250">Evangeline Mantzioris</a>, Program Director of Nutrition and Food Sciences, Accredited Practising Dietitian, <a href="https://theconversation.com/institutions/university-of-south-australia-1180">University of South Australia</a></em></p> <p><em>Image credits: Shutterstock </em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/matcha-is-having-a-moment-what-are-the-health-benefits-of-this-green-tea-drink-242775">original article</a>.</em></p> </div>

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The science of the ideal salad dressing

<div class="theconversation-article-body"><em><a href="https://theconversation.com/profiles/nathan-kilah-599082">Nathan Kilah</a>, <a href="https://theconversation.com/institutions/university-of-tasmania-888">University of Tasmania</a></em></p> <p>Summer means salads. And salads are even more delicious with a good dressing.</p> <p>Most salad dressings are temporarily stable mixtures of oil and water known as emulsions.</p> <p>But how do salad dressing emulsions form? And how can we enhance our emulsions for better salads and more?</p> <h2>Oil and water don’t mix</h2> <p>It’s accepted wisdom that oil and water don’t mix. The water and oil molecules have distinct chemical properties that don’t interact well together.</p> <p>You may have seen this if you’ve attempted to make a salad dressing by shaking together oil and vinegar (which is mostly water), which gives a temporary suspension that quickly separates.</p> <p>There is a large energy cost to breaking apart and mixing the water and oil layers. The secret to blending them together is to add an extra ingredient known as a “surfactant” or emulsifier.</p> <p>The name surfactant is derived from “surface active”. It highlights that these molecules work at the surface or interface to bridge the interactions between the oil and water. This is similar to how <a href="https://theconversation.com/what-is-sodium-lauryl-sulfate-and-is-it-safe-to-use-125129">detergents</a> are able to remove grease from your dishes.</p> <p>Many vinaigrette recipes call for emulsifiers without specifically mentioning their crucial emulsifying role.</p> <p>Key examples are mustard and garlic, which contain “mucilage” – a mix of carbohydrates – that can act as emulsifiers.</p> <p>So if your vinegar/oil salad dressings are separating, make sure you’re adding enough of these ingredients (which also contain <a href="https://theconversation.com/hate-vegetables-you-might-have-super-taster-genes-74428">wonderful flavour chemicals</a>).</p> <p>Commercial salad dressings also contain naturally sourced emulsifying carbohydrates. These will often be listed on the ingredients as generic “vegetable gum” or similar, and you may need to <a href="https://theconversation.com/busting-the-myth-that-all-food-additives-are-bad-a-quick-guide-for-label-readers-82883">read the label</a> and delve a little deeper into the <a href="https://www.foodstandards.gov.au/consumer/additives/additiveoverview/Documents/Food%20Additive%20Code%20Numbers%20%28July%202014%29.pdf">food additive number</a> to find out the source.</p> <p>Researchers have raised questions about <a href="https://theconversation.com/food-additives-and-chronic-disease-risk-what-role-do-emulsifiers-play-38492">synthetic emulsifiers used in processed food</a>, as studies in mice suggest they have health risks. It’s too early to say exactly what this means for humans.</p> <h2>Shake it ‘til you make it</h2> <p>Mixing is key to dispersing oil in water. While shaking a jar is convenient, a whisk or food processor will give a more complete emulsion. The white (or opaque) colour of many emulsions is due to the formation of microdroplets that scatter light.</p> <p>These mechanical mixing methods are even more essential for the formation of so-called “permanent emulsions” such as mayonnaise.</p> <p>Mayonnaise is an emulsion of oil in water, but egg yolk is the key emulsifier. Egg yolks contain long molecules called <a href="https://link.springer.com/referenceworkentry/10.1007/978-3-642-36605-5_28">phospholipids</a> that are able to interact with both the oil layer and the water. Mayonnaise is an impressively stable emulsion, which is why is can be sold in a shelf-stable form.</p> <p>But it isn’t infinitely stable; heating the mayonnaise emulsion will cause it to split. Perhaps you’ve hurriedly prepared a potato salad and added a mayonnaise-based dressing before the potatoes have cooled down?</p> <p>Or toasted a sandwich spread with mayonnaise? (Incidentally, adding mayonnaise to the <em>outside</em> of a toasted sandwich is an excellent path to some <a href="https://theconversation.com/kitchen-science-from-sizzling-brisket-to-fresh-baked-bread-the-chemical-reaction-that-makes-our-favourite-foods-taste-so-good-58577">delicious and crispy chemical reactions</a>.)</p> <p>The heat destabilises the emulsion and the separate oil and water phases will reform. Depending on the mixture, split emulsions may be recovered by adding more emulsifier and re-whisking or re-mixing.</p> <p>Hollandaise sauce is a notoriously difficult emulsion to prepare. The traditional hollandaise method involves whisking egg yolk, water, and lemon juice over a low heat, then slowly adding melted butter with further whisking. Not only can the emulsion split, but you can also overcook the added emulsifying egg yolk.</p> <p>The key to a successful hollandaise emulsion is separating the butter into fine, dispersed droplets, giving a thick and opaque mixture, but without cooking the eggs. Adding the butter too quickly or without sufficient mixing can give a split sauce.</p> <p>Using an <a href="https://www.seriouseats.com/foolproof-2-minute-hollandaise-recipe">immersion blender</a> can help, as can controlling the temperature of the melted butter. You might get a more consistently emulsified sauce with far less strain on your wrists.</p> <h2>You’ve got me feeling emulsions</h2> <p>Emulsions are used in many more places than salads and sauces. Most medicated creams, cosmetics and lotions are emulsions of oils and water, which is why they look white.</p> <p>Gardeners might be familiar with a mixture known as “<a href="https://www.abc.net.au/gardening/how-to/horticultural-oils/9428876">white oil</a>” – a mixture of vegetable oil and detergent. This brew, when diluted in water, is an inexpensive, effective, yet mild insecticide. Commercial versions often contain other pesticides, so make sure you read the label.</p> <p>Modern <a href="https://www.acs.org/education/whatischemistry/landmarks/acrylicemulsion.html">acrylic paints use emulsions</a> for both their manufacturing and application. The emulsions suspend the paint polymers in a water base.</p> <p>The water from the paint evaporates, leaving a film of paint polymers that can’t be re-dispersed into water. This clever chemical trick has saved huge quantities of oil-derived solvents from being used, <a href="https://theconversation.com/why-solvents-can-affect-brain-health-even-at-low-levels-of-exposure-98081">inhaled</a>, and emitted into the environment from traditional oil-based paints.</p> <p>Modern vaccines use <a href="https://theconversation.com/adjuvants-the-unsung-heroes-of-vaccines-156548">emulsions to increase the immune systems response</a>. Other common emulsions are inks, <a href="https://theconversation.com/how-does-ice-cream-work-a-chemist-explains-why-you-cant-just-freeze-cream-and-expect-results-205038">ice cream</a>, margarine and hair products, to name just a few.</p> <p>So next time you’re making a salad, check your emulsions. Opposites don’t attract, but mixing them with the right chemistry can give a delicious result.<!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/216159/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https://theconversation.com/republishing-guidelines --></p> <p><em><a href="https://theconversation.com/profiles/nathan-kilah-599082">Nathan Kilah</a>, Senior Lecturer in Chemistry, <a href="https://theconversation.com/institutions/university-of-tasmania-888">University of Tasmania</a></em></p> <p><em>Image credits: Shutterstock </em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/the-science-of-the-ideal-salad-dressing-216159">original article</a>.</em></p> </div>

Food & Wine

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Nearly 200 chemicals linked to cancer found in everyday food packaging

<p>A new study has uncovered the alarming amount of potential carcinogens in food packaging and plastic tableware. </p> <p>Researchers from the Food Packaging Forum found that nearly 200 chemicals linked to breast cancer are being used in food packaging, with dozens of these carcinogens able to find their way into the body. </p> <p>“There is strong evidence that 76 known or potential breast carcinogens from food contact materials recently purchased all over the world can be found in people,” study co-author Jane Muncke said.</p> <p>“Getting rid of these known or suspected carcinogens in our food supply is a huge opportunity for cancer prevention.”</p> <p>Muncke is managing director and chief scientific officer at the Food Packaging Forum, a non-profit foundation based in Zurich, Switzerland focusing on science communication and research. </p> <p>The study, published last month in the journal Frontiers In Toxicology, compared a list of potential breast carcinogens to a list of chemicals that have been found in food contact materials to find out which of the potential carcinogens could be getting into people's diets. </p> <p>Of the 189 potential mammary carcinogens in food contact materials, with 143 of these found in plastics and 89 found in paper or cardboard. </p> <p>Of the recently detected chemicals found in food packaging, 40 have already been classified as hazardous by regulatory agencies around the world. </p> <p>Another research scientist, Jenny Kay, from Silent Spring Institute an organisation focused on the link between chemicals, women's health, and breast cancer said: “So many of these chemicals have already been classified as human health hazards, yet they are still allowed to be used in food contact materials thus allowing them to migrate into the food we eat." </p> <p>Early-onset breast cancer rates in women younger than 50 have been increasing, and experts said the trend cannot be explained by genetics alone. </p> <p>“Many of the mammary carcinogens are hormone disruptors, too, and many of the chemicals on our list can also damage DNA," Kay said. </p> <p>“Consumers should not have to keep track of all of the scientific literature on what chemicals to avoid. It should be on regulators to recognise the danger and take action.”</p> <p>The Consumer Brands Association, which represents the consumer products industry, said its members adhered to the US Food and Drug Administration’s evidence-based safety standards.</p> <p>“Packaging exists to protect and keep food safe for consumption,” the association’s senior vice president of product policy and federal affairs Sarah Gallo told <em>CNN</em>. </p> <p>“The FDA reviews and approves food contact substances through their science and risk-based system before they go to market.</p> <p>“The agency’s post-market review also provides continuous safety analysis and regulation of the approved substances.”</p> <p><em>Image: Shutterstock</em></p> <p> </p>

Body

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Maggie Beer wins top award while on the road to recovery

<p>Maggie Beer has been honoured with a top award just days after opening up about her recovery following a fall last month.</p> <p>The 79-year-old Aussie chef won Best Host of a Format at the C21 International Format Awards in Cannes for her role hosting <em>Maggie Beer’s Big Mission</em> on the ABC.</p> <p>The leading awards recognises creativity and excellence across the global television industry.</p> <p>Beer was the only woman in the category, beating some of the television industry's biggest names including Jimmy Kimmel for <em>Who Wants to Be a Millionaire US</em>, Stephen Fry in <em>Jeopardy UK</em>, Alan Cumming for <em>The Traitors US</em> and Big Zuu for <em>Big Zuu’s 12 Dishes in 12 Hours.</em></p> <p><em>Maggie Beer’s Big Mission</em> was inspired by the findings of the Royal Commission into Aged Care in 2021, which  exposed high rates of malnutrition in older adults living in aged care.</p> <p>In the show she led a world-first social experiment to transform the meals and dining experience at an aged-care home in Perth, WA. Beer and team of experts changed the menu, dining rooms and gardens using the "care model" to improve nutrition and wellbeing of residents. </p> <p>In a statement, Beer said it was a “privilege to actually live the experience in an aged-care home brave enough to show warts and all.”</p> <p>She learned what was acceptable to feed residents and what wasn't but “…most of all how to begin the journey of change to show the difference that is made to the happiness and wellbeing not only of the residents but the staff as well,” she said.</p> <p>“With her extraordinary leadership she has put older Australians first and given them a voice,” managing director of Artemis media, Celia Tait said.</p> <p>This comes just days after Beer opened up on her fall in August, where she suffered minor bone fractures and related injuries, telling her instagram followers that "even though I want to tell you how good I’m feeling now, I still have a way to go."</p> <p>“I will make a full recovery, and part of it is the care and the love that I’ve been given.”</p> <p><em>Images: Instagram</em></p>

Food & Wine

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Cruise director shares little known ship facts

<p dir="ltr">A cruise director has revealed little known facts about cruise ships and their dedicated staff, while sharing tips for eager travellers.  </p> <p dir="ltr">Luigi Incarnato, cruise director for MSC, is often seen hosting events, introducing acts and getting involved with passengers onboard his cruises. </p> <p dir="ltr">He shared his top tips for passengers with <em><a href="https://travel.nine.com.au/cruising/cruise-ship-worker-msc-world-europa/cab3f458-35e0-4989-aa3e-ce0cec1eee6b">9Travel</a></em>, while also revealing some industry secrets. </p> <p dir="ltr">When asked what people may not have considered about the crew and vessel of a cruise ship, Luigi shared that even more work goes into pulling off a trip than one might think. </p> <p dir="ltr">He said, “Our crew onboard comes from more than 60-70 countries of the world, spread on all continents, leading to an exceptionally culturally diverse team, which we are very proud of.”</p> <p dir="ltr">“Each one of our crew members is remarkably hard working and skilled in their trade. Our crew comes onboard for an average of six to seven months then goes home to rest for an average of two months and reembarks, possibly on a new ship.”</p> <p dir="ltr">“We also work on national holidays, on Christmas Day and New Year's Eve.”</p> <p dir="ltr">Luigi added that there is one thing many people may not think to bring onboard, that is of vital importance. </p> <p dir="ltr">When asked what essential to pack, he said, “Their complete health issues history and a medicine list with any prescriptions that may be needed during the cruise.”</p> <p dir="ltr">“A suitable wardrobe for the theme nights, especially for the elegant and white dress code evenings, and sunscreen.”</p> <p dir="ltr"><em>Image credits: Shutterstock </em></p>

Cruising

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Cruise passengers share why you never leave your cabin balcony door open

<p>A couple on a cruise ship have learned the hard way why you should never leave the balcony door in your cruise cabin open and unattended for too long. </p> <p>While on a cruise around the US and docked in the port of Orlando in Florida, the couple took to TikTok to share their "horror" experience of when their cabin filled up with birds. </p> <p>In the video, they opened the door to their room and were swarmed by a flock of birds as they captioned the video, "When you go on a cruise and you come back to a bunch of (bird emoji) everywhere."</p> <p>"Felt like we were living in a horror movie scene. I can breathe now because I can (laugh)about it," the passenger added.</p> <div class="embed" style="font-size: 16px; box-sizing: inherit; margin: 0px; padding: 0px; border: 0px; vertical-align: baseline; outline: currentcolor !important;"><iframe class="embedly-embed" style="box-sizing: inherit; margin: 0px; padding: 0px; border-width: 0px; border-style: none; vertical-align: baseline; width: 600px; max-width: 100%; outline: currentcolor !important;" title="tiktok embed" src="https://cdn.embedly.com/widgets/media.html?src=https%3A%2F%2Fwww.tiktok.com%2Fembed%2Fv2%2F7423175328480136491&display_name=tiktok&url=https%3A%2F%2Fwww.tiktok.com%2F%40greedy810%2Fvideo%2F7423175328480136491&image=https%3A%2F%2Fp16-pu-sign-useast8.tiktokcdn-us.com%2Fobj%2Ftos-useast5-p-0068-tx%2FoM5JajVJBIUqbExUAiiApxIM8Af9zqBEi0wBCg%3Flk3s%3Db59d6b55%26x-expires%3D1729123200%26x-signature%3DC%252F8Xte%252FDJymZpHuGaa4Y8zX%252F6AA%253D%26shp%3Db59d6b55%26shcp%3D-&key=59e3ae3acaa649a5a98672932445e203&type=text%2Fhtml&schema=tiktok" width="340" height="700" frameborder="0" scrolling="no" allowfullscreen="allowfullscreen"></iframe></div> <p>The video was taken on the Carnival Freedom cruise ship in the USA, with the couple later posting another video of a room steward catching two birds in a cardboard box.</p> <p>Viewers in the comments were a mix of amused and horrified, as one person wrote, "You're not supposed to leave your balcony door open when you're gone."</p> <p>"You have a whole Alfred Hitchcock movie in your room," another commented, comparing the scene with the film,<em> The Birds</em>.</p> <p>Others speculated that the unusual behaviour of the birds could be impacted by the nearby Hurricane Milton. </p> <p><em>Image credits: TikTok</em></p>

Cruising

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Young woman dies after horror cruise fall

<p>A woman in her 20s has died after plunging from the MSC Virtuosa cruise ship in the middle of the night. </p> <p>The cruise ship was travelling from Lisbon to Southampton when disaster struck at around 2am on October 12. </p> <p>While air ambulance successfully winched her out of the English Channel, she was pronounced dead at the hospital despite the best efforts of medics. </p> <p>British and French police are now probing the unidentified woman's death, <em>The Sun</em> reported. </p> <p>The ship originally sounded a Man Overboard alert and spotlights were then used to light up the sea, as aircraft from France and the Channel Islands attended the sea. </p> <p>Infra-red cameras were used to locate the woman, who would've struggled to survive in the cold water. </p> <p>At around 3am French time, an emergency alert was issued saying that a person was missing, a coast guard told <em>The Sun</em>. </p> <p>A helicopter was sent to a search area just north Les Casquets rocks, near the Channel Island of Alderney, while a plane from  Channel Islands Air Search was sent to the scene from Guernsey, along with lifeboat crews.</p> <p>The £650 million ($A1.2 billion) vessel, which has a crew of more than 1500 and can carry up to 6300 passengers, remained in the area before making its way to Southampton. </p> <p>“A guest on board MSC Virtuosa went overboard on 12 October, while the ship was sailing to Southampton,” a Virtuosa spokesperson said.</p> <p>“The body was later recovered with the involvement of the authorities.</p> <p>“We are deeply saddened by this tragic event, and our thoughts are with the family during this difficult time.</p> <p>“Out of respect for their privacy, we will not be providing further details.”</p> <p>A Hampshire Police spokesperson added: “The investigation is not being managed by UK authorities.”</p> <p><em>Images: P.Cartwright / Shutterstock.com/ Channel Islands Air Search</em></p> <p> </p>

Travel Trouble

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3 key differences between an ocean and river cruise

<p>People often have a personal preference when it comes to ocean cruises or river cruises, so if you’re not sure what to go for, it’s best to know how they really differ before booking your next trip.</p> <p>Here are the three key differences between an ocean and river cruise.</p> <p><strong>1. Cost</strong></p> <p>River cruises are initially more expensive, and travellers can expect the price to be from $200-500 per person per night. Ocean ships can cost less than $100 per night if you get a good deal.</p> <p>However, once onboard your ocean cruise there will be a likelihood that you splurge on extra costs such as drinks, tours and souvenirs.</p> <p><strong>2. Inclusions</strong></p> <p>Only the most upmarket ocean cruises are all-inclusive but on an ocean cruise if you want mealtime alcohol, Wi-Fi and other extras, you will be expected to pay up. All these extras are included in river-cruise fares and sometimes airport transfers are included too.</p> <p>River cruises require you to pay a heftier sum upon booking but if you are going on an ocean cruise, be sure to keep track of your spending.</p> <p><strong>3. Ship amenities</strong></p> <p>On river cruises, expect your onboard entertainment to be a massage room, fitness room or hot tub as most of the focus is on the destination. However, ocean cruises are lined with Broadway-styled shows, casinos, kids’ clubs, water parks, spas and various pools.</p> <p>If you prefer a quiet, intimate setting then river cruises would suit your desires but if you want a wide-range of entertainment, ocean cruises are for you.</p> <p><em>Image credits: Shutterstock </em></p>

Cruising

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10 things you should never do on a cruise balcony

<p>While many cruise ship passengers may think they can abide by their own rules in the comfort of their cabins, there are still many cruise ship etiquette rules to follow.</p> <p>Even though some passengers may have private balconies in their rooms, that doesn't mean you can act as if no one is watching. It's important to follow these rules while in your rooms and on your balcony to ensure you'll never be forced to cop the consequences of bad behaviour. </p> <p><strong>1. Smoke</strong></p> <p>Smoking on cruise balconies is a real no-no. Not only is the wafting smoke an unpleasant smell, but a half-burning cigarette blown back aboard can potentially be a fire hazard.</p> <p><strong>2. Make too much noise</strong></p> <p>One think that’s often forgotten is the fact that when we’re standing on our cruise ship balconies we’re well within earshot of our neighbours, so keep the volume down.</p> <p><strong>3. Go nude</strong></p> <p>The thing people sun bathing in one their cruise ship balcony in their birthday suit don’t realise is many balconies are tiered, so you may actually be in view of others.</p> <p><strong>4. Stand or climb on railings</strong></p> <p>Now this should be obvious, but you should never stand on the railings or the verandah furniture can significantly increase your risk of being thrown overboard.</p> <p><strong>5. Throw items overboard</strong></p> <p>It might be tempting to toss a message in a beer bottle overseas, but there are strict regulations. Not only is this dangerous, it’s also not environmentally friendly.</p> <p><strong>6. Dry clothes  </strong></p> <p>It can be quite difficult to dry your swimmers when you’re off a cruise, but one strong gust of wind could mean you could go the rest of your cruise without bathers.</p> <p><strong>7. Leave the balcony door open</strong></p> <p>On a hot and humid day, leaving the balcony door ajar might seem like a good idea, but the gusty sea breeze can wreak havoc with any loose items in your cabin.</p> <p><strong>8. Light a candle</strong></p> <p>It might seem like it’s a good way to enhance the mood, but any open flame on a cruise ship is a fire hazard, and lighting a candle is almost always against regulations.</p> <p><strong>9. Leave the balcony light on</strong></p> <p>If your cruise balcony has outdoor lighting, make sure you turn if off when you’re not actually using it, to save electricity and not disturb your neighbours.</p> <p><strong>10. Amorous behaviour</strong></p> <p>Cruises are inherently romantic holidays, but you might need to avoid overt displays of affection. As mentioned above, balconies are not be as private as you think.</p> <p><em>Image credits: Shutterstock </em></p>

Cruising

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