Air Fryer Materials, Without the Panic

What is actually in there

Three materials cover almost every air fryer and oven-style air fryer: PTFE non-stick, ceramic non-stick, and bare stainless steel. Knowing which is which, and what each does at temperature, is enough to make an informed decision — and it is far less alarming than the search results suggest.

PTFE(the family that includes Teflon) is the most common non-stick coating on baskets and crisper trays. Its relevant property is thermal stability: it is stable through normal cooking temperatures and only begins to degrade well above them — hotter than an air fryer's thermostat normally permits. The historical concern was PFOA, a processing aid that has been phased out of cookware manufacturing; modern coatings are made without it. Damaged or flaking coating is a reason to replace a basket, but intact PTFE at cooking temperatures is not the hazard the scary framing implies.

Ceramicnon-stick is a silica-based coating marketed as the “clean” alternative. It contains no PTFE, which is its selling point. The trade is durability: ceramic coatings tend to lose their non-stick property faster with use. Whether that is worth it depends entirely on how much the PTFE question worries you.

Stainless steel is the interior of most oven-style air fryers, and bare steel is the racks. It has no coating to degrade at all. This is the reason an oven-style air fryer is inherently lower-coating than a basket model: most of your food sits on a steel rack in a steel box.

How to minimize coatings, if that is your priority

1. Choose an oven-style air fryer over a basket model. Bare-steel interior, steel racks, and the only coated part is usually the crisper tray — which you can replace with a plain steel one.
2. Swap the crisper tray for a stainless or steel-mesh one. Universal replacements are inexpensive and eliminate the last coated surface.
3. Do not use metal utensils on any coating, and replace anything that flakes. Intact coating and damaged coating are different situations.

The ovens with bare-steel interiors are ranked here. We can only report what the manufacturer publishes and what is visible in the cavity; where a brand does not document its coating, we say so rather than reassuring you.