Air fryers have exploded in popularity as a “healthier” alternative to deep frying and even traditional ovens. They promise crispy results with little oil, faster cooking, and lower energy use for small meals.
However, experts—including nutritionists, food scientists, and safety organizations—are cautioning against ditching your oven entirely for air fryers. While great for certain tasks, over-reliance can lead to health, safety, and practical drawbacks.

1. Higher Acrylamide Formation in Some Foods
Acrylamide, a potential carcinogen formed in starchy foods at high temperatures, is a concern. A 2024 study found air-fried potatoes contained slightly more acrylamide than deep-fried or oven-fried versions (though pre-soaking reduces it across methods). Air fryers’ intense hot air circulation can promote this compound more in items like fries or roasted veggies compared to conventional ovens.
2. Non-Stick Coatings and “Forever Chemicals” (PFAS)
Many air fryer baskets use PTFE (Teflon-like) coatings for easy cleanup, but these may contain PFAS—”forever chemicals” linked to health risks like hormone disruption or cancer with prolonged exposure. Overheating or scratching releases fumes. While not unique to air fryers, frequent high-heat use raises concerns—some experts recommend ceramic or stainless models.
3. Fire and Safety Hazards
Air fryers get extremely hot quickly and can cause burns or fires if misused (overfilled, excess oil, unattended). Reports note higher insurance claims from air fryer incidents. Ovens are generally safer for larger batches.
4. Less Efficient for Big Meals
For families or batch cooking, ovens are better—air fryers require multiple rounds, using more total energy than one oven session. Money experts note air fryers save only on small/quick items.
5. Nutrient Retention and Cooking Evenness
Ovens (especially convection) often cook more evenly for baking/roasting, preserving nutrients better in some cases. Air fryers excel at crisping but can dry out food.
Air fryers aren’t “dangerous”—they’re healthier than deep frying overall. But experts advise balance: Use for small, crispy meals; rely on ovens for volume, baking, or even cooking. Clean thoroughly, avoid overheating, and choose PFAS-free models for safety.
Your kitchen needs both for optimal health and convenience!