Foods You Should Not Cook in an Air Fryer

This is the most frequently cited limitation. Beer batter, tempura batter, and pancake-style coatings do not work in a standard air fryer. Before the batter can set from the heat, the air stream blows it off the food and it drips down onto the heating element, creating smoke and a difficult cleanup. The fix if you want a batter-style coating: use the three-step breading method — flour, egg wash, then breadcrumbs or panko. This holds up to the air stream and produces a genuinely crispy crust. Pre-breaded frozen foods work because the batter was already set before freezing.

Spinach, kale chips, herb sprigs, and other lightweight foods risk being blown into the heating element by the air fryer's fan. This creates a fire hazard and uneven cooking. The workaround: weigh them down with a rack or mix them with heavier items. Small breadcrumbs added to coatings can also blow around and settle on the heating coil, so use coarser breadcrumbs (panko) for breaded items in the air fryer. Thinly sliced chips (potato crisps, kale chips) can work if pressed flat and held down by a rack.

Uncoated cheese placed directly in an air fryer will melt, flow through the basket grating, and drip onto the heating element before it can brown. The solution: bread the cheese (mozzarella sticks with a double breading that holds up at high heat work well), place cheese on top of food rather than alone, or use it inside something (stuffed peppers, quesadillas in foil). Halloumi is an exception — it has a high enough melting point to brown in the air fryer without melting through.

Rice, pasta, polenta, risotto — anything that requires liquid absorption to cook — cannot be made in an air fryer. Neither can soups, stews, or sauces. The air fryer has no sealed environment to hold liquid; it all evaporates and burns onto the heating element. For very moist foods (custard, crème brûlée, steamed buns), a conventional oven or stovetop is the right tool. Technically you can bake some custards in a ramekin inside the air fryer, but results are inconsistent and the circulating air creates a skin on top that a water bath prevents.

What foods don't work well in an air fryer?

Foods that struggle: wet batters (beer batter, pancake-style coatings) drip before they set; large leafy items blow around; uncoated cheese melts through the basket; rice, pasta, and grain dishes need liquid; large roasts over 4 lbs often don't fit. Liquid-based dishes (soups, stews, sauces) are also obviously unsuitable — the air fryer has no sealed pot to hold liquid.

Can you air fry foods with wet batter?

Traditional wet batter (beer batter, tempura) does not work in a standard air fryer — it slides off before it can set, and the drips splatter onto the heating element. Pre-breaded breadcrumb coatings work fine. For a lighter coating, use the three-step method: dredge in flour, dip in egg, then coat with fine breadcrumbs or panko — this holds up to the air stream and produces an excellent crust.

Why do leafy greens and delicate herbs fail in an air fryer?

The powerful fan in an air fryer sends lightweight leaves flying around the basket, where they press against the heating element or the basket walls and burn in seconds. Even if held down, thin leaves dry out and turn bitter long before they can develop any useful texture. For kale chips — the one exception — success depends on thoroughly massaging the leaves with oil so they are heavy and flat enough to stay put; spin the basket gently and watch closely.