Short answer: there’s no evidence that air fryers cause cancer. The concerns people raise are about two things that apply to many kinds of cooking: acrylamide, which forms when starchy food is browned at high heat, and chemicals in non-stick coatings. Here’s what the evidence actually says and how to keep any risk low.
This article is general information, not medical advice. If you have a specific health condition, talk to your doctor or a registered dietitian.
1. Acrylamide: the main concern
Acrylamide is a compound that forms naturally when starchy foods like potatoes, bread and biscuits are cooked above about 120 °C until brown. It forms in deep frying, oven baking, toasting and air frying alike.
- The WHO’s International Agency for Research on Cancer (IARC) classifies acrylamide as Group 2A, “probably carcinogenic to humans”, based mainly on animal studies.
- Air fryer vs deep fryer: the research is mixed. Some studies have found less acrylamide in air-fried potatoes; a 2023 study in Frontiers in Nutrition found slightly higher levels in air-fried potatoes than deep-fried ones in its tests. There’s no clear evidence that one method is consistently worse.
How to reduce acrylamide (any cooking method)
- Go for gold: cook potatoes and breads to light golden, not dark brown or charred.
- Soak cut potatoes in water for 15–30 minutes, then dry them. Studies show soaking reduces acrylamide.
- Don’t over-cook: use the right temperature and time (see our time chart).
- Vary your diet: balance crisp potato snacks with vegetables, paneer and pulses.
2. Non-stick coatings (PTFE and PFOA)
- PFOA was used in making PTFE (Teflon-type) coatings in the past. In 2023, IARC classified PFOA as carcinogenic to humans (Group 1). Under the US EPA’s 2010/2015 PFOA Stewardship Program, the major manufacturers committed to eliminating PFOA from their products, and report meeting that goal. Reputable brands now label baskets “PFOA-free”.
- PTFE itself is very stable at normal cooking temperatures. It begins to break down at about 260 °C (500 °F), above the maximum of most air fryers.
To be extra careful: avoid scratching the coating, replace flaking baskets, and don’t run the air fryer empty for long periods. Or choose a Teflon-free air fryer.
3. Charred and smoked meat
Very high-heat cooking of meat, especially charring over a flame, can form compounds such as heterocyclic amines (HCAs). Air fryers don’t use a direct flame, but avoid burning meat. Marinades and cooking to safe temperatures rather than charring are sensible habits.
The bottom line
| Concern | Air fryer-specific? | What to do |
|---|---|---|
| Acrylamide | No: all high-heat cooking of starchy food | Golden, not brown; soak potatoes |
| PFOA | No: historic non-stick issue; phased out by major makers | Buy PFOA-free from reputable brands |
| PTFE fumes | Only above ~260 °C | Normal air fryer temperatures stay below this |
| Charred meat | No: all high-heat meat cooking | Avoid burning; use marinades |
Frequently asked questions
Do air fryers cause cancer?
No evidence shows that. Acrylamide in browned starchy food is a concern with all high-heat cooking, so cook to golden and soak potatoes.
Is air-fried food safer than deep-fried?
It contains much less absorbed oil. On acrylamide, studies disagree, so the practical steps (golden colour, soaking) matter more than the appliance.
Are Teflon air fryers dangerous?
Modern PTFE coatings from reputable brands are PFOA-free and stable at air fryer temperatures. Replace baskets that are flaking.
More: are air fryers toxic? · is an air fryer healthy? · health & safety hub