{"id":19850,"date":"2022-11-21T12:05:53","date_gmt":"2022-11-21T11:05:53","guid":{"rendered":"https:\/\/www.sciencefocus.com\/?p=130972"},"modified":"2022-11-24T11:00:41","modified_gmt":"2022-11-24T10:00:41","slug":"how-do-air-fryers-work-the-science-of-everyones-favourite-kitchen-gadget","status":"publish","type":"rss_feed","link":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/rss_feed\/how-do-air-fryers-work-the-science-of-everyones-favourite-kitchen-gadget\/","title":{"rendered":"How do air fryers work? The science of everyone\u2019s favourite kitchen gadget"},"content":{"rendered":"<p class=\"rssexcerpt\"><\/p><p class=\"rssauthor\">By Rob Banino\n                \t\t<\/p><p class=\"rssbyline\">Published: Monday, 21 November 2022 at 12:00 am<\/p><hr class=\"no-tts wp-block-separator\"\/><?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\"?>\n<!DOCTYPE html PUBLIC \"-\/\/W3C\/\/DTD HTML 4.0 Transitional\/\/EN\" \"http:\/\/www.w3.org\/TR\/REC-html40\/loose.dtd\">\n<html><body> <p>Looking for a way to cook food that\u2019s quicker and cheaper than baking it in the oven? A cooking method that\u2019s as tasty as deep-frying, but healthier and easier to clean up afterwards?<\/p>\n<p>Then, if the marketing hype and endless social media mentions are to be believed, you\u2019re looking for an air fryer. But what is this miraculous device and how does it work?<\/p>\n<h2>What is an air fryer?<\/h2>\n<p>An air fryer is the name for what is possibly the hottest home cooking appliance of the moment. It\u2019s also something of a misnomer, because, strictly speaking, it\u2019s not a fryer. It\u2019s actually more of a high-intensity convection oven.<\/p>\n<p>But whereas a convection oven is typically big, takes a long time to heat up and needs to be installed in some sort of kitchen unit, an air fryer is small, takes next to no time to heat up and sits on your countertop.<\/p>\n<h2>How does an air fryer work?<\/h2>\n<div class=\"&quot;image-handler__container\" image-handler__container--full=\"\" style=\"&quot;padding-bottom:\" calc=\"\"> <picture><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/11\/GettyImages-1239713606-f3e03db-e1669027925632.jpg?webp=true&amp;quality=90&amp;resize=300%2C200,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/11\/GettyImages-1239713606-f3e03db-e1669027925632.jpg?quality=90&amp;resize=300%2C200,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/11\/GettyImages-1239713606-f3e03db-e1669027925632.jpg?webp=true&amp;quality=90&amp;resize=355%2C237,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/11\/GettyImages-1239713606-f3e03db-e1669027925632.jpg?quality=90&amp;resize=355%2C237,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/11\/GettyImages-1239713606-f3e03db-e1669027925632.jpg?webp=true&amp;quality=90&amp;resize=405%2C270,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/11\/GettyImages-1239713606-f3e03db-e1669027925632.jpg?quality=90&amp;resize=405%2C270,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/11\/GettyImages-1239713606-f3e03db-e1669027925632.jpg?webp=true&amp;quality=90&amp;resize=554%2C369,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/11\/GettyImages-1239713606-f3e03db-e1669027925632.jpg?quality=90&amp;resize=554%2C369,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/11\/GettyImages-1239713606-f3e03db-e1669027925632.jpg?webp=true&amp;quality=90&amp;resize=620%2C413,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/11\/GettyImages-1239713606-f3e03db-e1669027925632.jpg?quality=90&amp;resize=620%2C413,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/11\/GettyImages-1239713606-f3e03db-e1669027925632.jpg?webp=true&amp;quality=90&amp;resize=408%2C272,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/11\/GettyImages-1239713606-f3e03db-e1669027925632.jpg?quality=90&amp;resize=408%2C272,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/11\/GettyImages-1239713606-f3e03db-e1669027925632.jpg?webp=true&amp;quality=90&amp;resize=556%2C371,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/11\/GettyImages-1239713606-f3e03db-e1669027925632.jpg?quality=90&amp;resize=556%2C371,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><img class=\"&quot;wp-image-130982\" align=\"\" size-full=\"\" image-handler__image=\"\" image-handler__image--full=\"\" no-wrap=\"\" js-lazyload=\"\" data-src=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/11\/GettyImages-1239713606-f3e03db-e1669027925632.jpg?quality=90&amp;resize=620%2C413&quot;\" width=\"&quot;620&quot;\" height=\"&quot;413&quot;\" alt=\"&quot;&quot;\" title=\"&quot;&quot;\"\/><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/div><div class=\"&quot;caption-hold&quot;\"><figcaption class=\"&quot;wp-caption-text&quot;\"><span class=\"&quot;caption-copy&quot;\"><i class=\"&quot;icon-arrow\" icon-camera-circle=\"\"\/> \u00a9 insjoy<\/span><\/figcaption><span class=\"&quot;im-image-caption&quot;\"\/><\/div>\n<p>By using a combination of radiation and convection to cook your food. A heating element near the top of the fryer emits heat into the air in the cooking chamber (radiation), while a fan circulates the heated air rapidly around it (convection).<\/p>\n<p>This combination creates a very intense heat transfer, resulting in a cooking method that\u2019s closer to frying than baking. The technical term for it is RUSH, or Radiant UpStream Heating, although, if your air fryer is made by Philips, it\u2019s referred to as Rapid Air Technology.<\/p>\n<h2>The best Black Friday air fryer deals<\/h2>\n<p>If you\u2019re considering buying an air fryer, now is a great time to make the purchase. We\u2019re currently in the Black Friday period, filled with big discounts on every kind of tech, including air fryers.<\/p>\n<p>While there are plenty of air fryer deals floating around right now, these are the best that we\u2019ve seen:<\/p>\n<ul><li><strong>Instant Pot 11-in-1 air fryer<\/strong> <a href=\"\/\/go.skimresources.com?id=71026X1535948&amp;xs=1&amp;url=https%3A%2F%2Fwww.amazon.co.uk%2FInstant-Pot-Multicooker-Sousvides-dehydrates%2Fdp%2FB08VNPVFWW%3Fth%3D1&quot;\" target=\"&quot;_blank&quot;\" rel=\"&quot;noopener&quot; noopener noreferrer\">at Amazon: <del>\u00a3189.99<\/del> \u00a3129.99<\/a><\/li>\n<li><strong>Instant Pot Crisp Ultimate air fryer<\/strong> <a href=\"\/\/go.skimresources.com?id=71026X1535948&amp;xs=1&amp;url=https%3A%2F%2Fwww.argos.co.uk%2Fproduct%2F2998419%3FclickSR%3Dslp%3Aterm%3Aair%2520fryer%3A15%3A64%3A1&quot;\" target=\"&quot;_blank&quot;\" rel=\"&quot;noopener&quot; noopener noreferrer\">at Argos: <del>\u00a3220<\/del> \u00a3155<\/a><\/li>\n<li><strong>Tefal ActiFry Genius air fryer <\/strong><a href=\"\/\/go.skimresources.com?id=71026X1535948&amp;xs=1&amp;url=https%3A%2F%2Fwww.currys.co.uk%2Fproducts%2Ftefal-actifry-genius-xl-ah960840-air-fryer-black-10211521.html&quot;\" target=\"&quot;_blank&quot;\" rel=\"&quot;noopener&quot; noopener noreferrer\">at Currys: <del>\u00a3249<\/del> \u00a3149<\/a><\/li>\n<li><strong>Tower air fryer <\/strong><a href=\"\/\/go.skimresources.com?id=71026X1535948&amp;xs=1&amp;url=https%3A%2F%2Fwww.argos.co.uk%2Fproduct%2F3063202%3FclickSR%3Dslp%3Aterm%3Aair%2520fryer%3A1%3A64%3A1&quot;\" target=\"&quot;_blank&quot;\" rel=\"&quot;noopener&quot; noopener noreferrer\">at Argos: <del>\u00a350<\/del> \u00a330<\/a><\/li>\n<li><strong>Instant Vortex 6-in-1 air fryer<\/strong> <a href=\"\/\/go.skimresources.com?id=71026X1535948&amp;xs=1&amp;url=https%3A%2F%2Fwww.argos.co.uk%2Fproduct%2F2998378%3FistCompanyId%3Da74d8886-5df9-4baa-b776-166b3bf9111c%26istFeedId%3Dc290d9a9-b5d6-423c-841d-&quot;\" target=\"&quot;_blank&quot;\" rel=\"&quot;noopener&quot; noopener noreferrer\">at Argos: <del>\u00a3120<\/del> \u00a380<\/a><\/li>\n<\/ul><h2>How is it different to cooking food in a convection oven?<\/h2>\n<p>For a start, the cooking chamber in an air fryer is a lot smaller than the chamber in a convection oven, so it\u2019s easier and quicker (and cheaper) to heat.<\/p>\n<p>The key difference, however, is that food cooking in an air fryer sits in a basket that has special channels and vents in its bottom and sides. These channels and vents allow the heated air to rapidly circulate underneath, across and over your food, mimicking the effect of submerging it in hot oil.<\/p>\n<p>Granted, convection ovens also use fans to blow hot air over the food being cooked, but their larger cooking chambers mean the air isn\u2019t circulating as fast and isn\u2019t heating the food as intensely.<\/p>\n<h2>How is food cooked in an air fryer healthier?<\/h2>\n<div class=\"&quot;image-handler__container\" image-handler__container--full=\"\" style=\"&quot;padding-bottom:\" calc=\"\"> <picture><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/11\/GettyImages-1201473403-bf01ef9-e1669027993578.jpg?webp=true&amp;quality=90&amp;resize=300%2C225,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/11\/GettyImages-1201473403-bf01ef9-e1669027993578.jpg?quality=90&amp;resize=300%2C225,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/11\/GettyImages-1201473403-bf01ef9-e1669027993578.jpg?webp=true&amp;quality=90&amp;resize=355%2C266,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/11\/GettyImages-1201473403-bf01ef9-e1669027993578.jpg?quality=90&amp;resize=355%2C266,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/11\/GettyImages-1201473403-bf01ef9-e1669027993578.jpg?webp=true&amp;quality=90&amp;resize=405%2C304,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/11\/GettyImages-1201473403-bf01ef9-e1669027993578.jpg?quality=90&amp;resize=405%2C304,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/11\/GettyImages-1201473403-bf01ef9-e1669027993578.jpg?webp=true&amp;quality=90&amp;resize=554%2C416,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/11\/GettyImages-1201473403-bf01ef9-e1669027993578.jpg?quality=90&amp;resize=554%2C416,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/11\/GettyImages-1201473403-bf01ef9-e1669027993578.jpg?webp=true&amp;quality=90&amp;resize=620%2C465,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/11\/GettyImages-1201473403-bf01ef9-e1669027993578.jpg?quality=90&amp;resize=620%2C465,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/11\/GettyImages-1201473403-bf01ef9-e1669027993578.jpg?webp=true&amp;quality=90&amp;resize=408%2C306,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/11\/GettyImages-1201473403-bf01ef9-e1669027993578.jpg?quality=90&amp;resize=408%2C306,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/11\/GettyImages-1201473403-bf01ef9-e1669027993578.jpg?webp=true&amp;quality=90&amp;resize=556%2C417,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/11\/GettyImages-1201473403-bf01ef9-e1669027993578.jpg?quality=90&amp;resize=556%2C417,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><img class=\"&quot;wp-image-130983\" align=\"\" size-full=\"\" image-handler__image=\"\" image-handler__image--full=\"\" no-wrap=\"\" js-lazyload=\"\" data-src=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2022\/11\/GettyImages-1201473403-bf01ef9-e1669027993578.jpg?quality=90&amp;resize=620%2C465&quot;\" width=\"&quot;620&quot;\" height=\"&quot;465&quot;\" alt=\"&quot;&quot;\" title=\"&quot;&quot;\"\/><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/div><div class=\"&quot;caption-hold&quot;\"><figcaption class=\"&quot;wp-caption-text&quot;\"><span class=\"&quot;caption-copy&quot;\"><i class=\"&quot;icon-arrow\" icon-camera-circle=\"\"\/> \u00a9 insjoy<\/span><\/figcaption><span class=\"&quot;im-image-caption&quot;\"\/><\/div>\n<p>It\u2019s not the food that\u2019s healthier, it\u2019s the cooking method, because there\u2019s significantly less oil involved. Oil is a fantastic medium for cooking because it retains and transports heat so well.\u00a0 But whether you\u2019re stir-frying, deep-frying or roasting your food, some of the oil soaks in as it cooks, which increases the amount of calories it.<\/p>\n<p>Air isn\u2019t as good a medium for cooking, but by circulating it rapidly in a confined space, an air fryer can almost recreate the same sort of heat transfer you get with oil, but without adding so many calories to your food.<\/p>\n<h2>Does an air fryer improve tastes?<\/h2>\n<p>Well, that ultimately depends on what you\u2019re cooking, but because of the intensity of the heat transfer caused by the rapid airflow, the Maillard reaction starts sooner in an air fryer than it does in a conventional oven. So, with a bit of practice, you can get the outsides of your foods to develop a brown and flavourful crust quicker, while ensuring the insides remain succulent and moist.<\/p>\n<p><strong>Read more:<\/strong><\/p>\n<ul><li><a href=\"&quot;https:\/\/www.sciencefocus.com\/science\/do-i-really-need-to-wash-veg-if-im-going-to-be-cooking-it\/&quot;\">Do I really need to wash veg if I\u2019m going to be cooking it?<\/a><\/li>\n<li><a href=\"&quot;https:\/\/www.sciencefocus.com\/science\/blowing-on-a-hot-cup-of-tea\/&quot;\">Does blowing on a hot cup of tea actually cool it down?<\/a><\/li>\n<li><a href=\"&quot;https:\/\/www.sciencefocus.com\/science\/cook-turkey-dropping-from-space\/&quot;\">Could you cook a turkey by dropping it from space?<\/a><\/li>\n<\/ul> <\/body><\/html>\n<hr class=\"no-tts wp-block-separator\"\/>","protected":false},"excerpt":{"rendered":"<p>By Rob Banino Published: Monday, 21 November 2022 at 12:00 am Looking for a way to cook food that\u2019s quicker and cheaper than baking it in the oven? A cooking method that\u2019s as tasty as deep-frying, but healthier and easier to clean up afterwards? Then, if the marketing hype and endless social media mentions are [&hellip;]<\/p>\n","protected":false},"author":24,"featured_media":19851,"template":"","categories":[1],"acf":{"readingTimeMinutes":"4"},"uagb_featured_image_src":{"full":["https:\/\/c01.purpledshub.com\/uploads\/sites\/42\/2022\/11\/how-do-air-fryers-work-the-science-of-everyones-favourite-kitchen-gadget.jpg",1200,511,false],"thumbnail":["https:\/\/c01.purpledshub.com\/uploads\/sites\/42\/2022\/11\/how-do-air-fryers-work-the-science-of-everyones-favourite-kitchen-gadget-150x150.jpg",150,150,true],"medium":["https:\/\/c01.purpledshub.com\/uploads\/sites\/42\/2022\/11\/how-do-air-fryers-work-the-science-of-everyones-favourite-kitchen-gadget-300x128.jpg",300,128,true],"medium_large":["https:\/\/c01.purpledshub.com\/uploads\/sites\/42\/2022\/11\/how-do-air-fryers-work-the-science-of-everyones-favourite-kitchen-gadget-768x327.jpg",768,327,true],"large":["https:\/\/c01.purpledshub.com\/uploads\/sites\/42\/2022\/11\/how-do-air-fryers-work-the-science-of-everyones-favourite-kitchen-gadget-1024x436.jpg",800,341,true],"1536x1536":["https:\/\/c01.purpledshub.com\/uploads\/sites\/42\/2022\/11\/how-do-air-fryers-work-the-science-of-everyones-favourite-kitchen-gadget.jpg",1200,511,false],"2048x2048":["https:\/\/c01.purpledshub.com\/uploads\/sites\/42\/2022\/11\/how-do-air-fryers-work-the-science-of-everyones-favourite-kitchen-gadget.jpg",1200,511,false]},"uagb_author_info":{"display_name":"importmanagerhub@sprylab.com","author_link":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/author\/importmanagerhubsprylab-com\/"},"uagb_comment_info":0,"uagb_excerpt":"By Rob Banino Published: Monday, 21 November 2022 at 12:00 am Looking for a way to cook food that\u2019s quicker and cheaper than baking it in the oven? A cooking method that\u2019s as tasty as deep-frying, but healthier and easier to clean up afterwards? Then, if the marketing hype and endless social media mentions are&hellip;","_links":{"self":[{"href":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/wp-json\/wp\/v2\/rss_feed\/19850"}],"collection":[{"href":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/wp-json\/wp\/v2\/rss_feed"}],"about":[{"href":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/wp-json\/wp\/v2\/types\/rss_feed"}],"author":[{"embeddable":true,"href":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/wp-json\/wp\/v2\/users\/24"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/wp-json\/wp\/v2\/media\/19851"}],"wp:attachment":[{"href":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/wp-json\/wp\/v2\/media?parent=19850"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/wp-json\/wp\/v2\/categories?post=19850"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}