Leafy greens are a big no when it comes to air-fryer cooking. The hot convection air will crisp most leafy greens such as spinach, kale and chard far beyond anything you'd want to eat. Solid veggies including Brussels sprouts, squash and zucchini fare well in the air fryer, but leafy greens are best when sautéed, stewed or steamed.

Air fryers have taken the world by storm - but there's one type of meat that you should avoid cooking in them.

While not every type of food is best reheated in the air fryer, a lot of them are. Air fryers are the perfect way to revive leftover pizza, fried chicken, grilled meats and vegetables. A microwave heats food unevenly and tends to impart a rubbery texture. Air fryers give food a second life via convection heat for a crispy crust and even heating.