Air fryers are generally safe and a lighter way to cook, but there are a few genuine downsides worth knowing. Most come from over-browning food, misuse, or relying too much on processed frozen snacks, not from the air fryer itself. Here they are, honestly, with how to avoid each one.
This article is general information, not medical advice. If you have a specific health condition, talk to your doctor or a registered dietitian.
Air fryer side effects and downsides
| Side effect | Why it happens | How to avoid it |
|---|---|---|
| Acrylamide in over-browned food | Starchy foods cooked dark brown at high heat | Cook to golden; soak cut potatoes |
| Worn or flaking coating | Metal tools, abrasive scrubbers, age | Silicone tools, soft sponge; replace damaged baskets |
| Smoke and burnt smells | Grease build-up, fatty food dripping | Clean after every use; a little water in the drawer for fatty foods |
| Dry or chewy food | Too long, too hot, no oil | Light oil spray; follow time charts |
| Eating more fried-style food | “It’s healthier” so portions grow | Portion snacks; cook whole foods, not just frozen |
| Plastic smell when new | Manufacturing residues burning off | Wash and run empty for 10 min in a ventilated room |
| Burns | Hot basket, steam when opening | Pull out slowly; use tongs |
| Fire risk | Loose parchment or foil, blocked vents | Never preheat with loose liners; keep vents clear |
| Noise | High-speed fan | Normal; see air fryer making noise if it’s unusual |
1. Acrylamide from over-browning
Acrylamide forms when starchy foods are cooked very brown at high temperatures, in any appliance. IARC classifies it as “probably carcinogenic to humans” (Group 2A). Studies disagree on whether air frying produces more or less than deep frying, so the practical advice is the same: aim for golden, not dark brown, and soak cut potatoes before cooking. Details: does an air fryer cause cancer?
2. Damaged non-stick coating
A scratched or peeling basket can let food stick, rust can develop, and flakes can end up in food. Use silicone or wooden tools and soft sponges, and replace the basket if the coating is visibly flaking. Prefer no coating? See air fryers without Teflon. Seeing rust? Read air fryer rusting.
3. Over-reliance on processed snacks
It’s easy to fall into a routine of frozen nuggets and fries because they’re quick. Air frying lowers the oil, but not the salt or the processing. Balance them with home-made options like roasted chickpeas, paneer tikka and roasted vegetables.
4. Dry food
Air fryers dry surfaces fast. That’s what makes food crisp, but it also makes lean food dry if overcooked. Use marinades with curd, brush with a little oil, and follow our cooking time chart.
5. Smoke and smells
Usually caused by old grease or fat dripping onto the hot drawer. Clean the basket and drawer after every use. More: why does my air fryer smoke?
Frequently asked questions
Are there side effects of eating air-fried food?
Not from air frying itself. The concerns are over-browning starchy foods (acrylamide) and eating lots of processed snacks. Cook to golden and favour whole foods.
Can air fryers cause cancer?
There’s no evidence that air fryers cause cancer. See our evidence summary: does an air fryer cause cancer?
More: is an air fryer safe? · is an air fryer healthy? · health & safety hub