Air fryers have become an essential part of many people's kitchens over the past few years. And while the machine is perfect for tater tots, chicken wings, and even salmon, there's plenty of stuff you shouldn’t put in there. The Takeout's list of 12 Things You Should Never Put in an Air fryer includes sauce-based recipes, soups, food coated in wet batter, steak, cheesy items, uncooked pasta and rice, bread to make toast, popcorn, leafy greens, and too much food at once.