Did you say “Air Fryer”?… Are you sure?!

Althoughthe air fryer is very popular as a supposedly “healthy” alternative to deep-frying, it has certain drawbacks and risks that users should take into consideration.

Here are a few thoughts I’d like to share with you onthe potential “harm” of this cooking appliance—an oil-free alternative, but not without risks.

Air fryers have become a must-have for households that want to enjoy “fried” foods without using large amounts of oil.

Indeed, these appliances promise lower-fat meals while retaining the taste and texture of traditional fried food. However, like any kitchen appliance, the air fryer is not without its drawbacks and poses certain risks to health and the environment.

One of the main concerns associated with using an air fryer is the formation of acrylamides, which are potentially carcinogenic chemical compounds. Acrylamide forms naturally in starchy foods, such as potatoes, when they are cooked at high temperatures—which is typical of air fryer cooking. This chemical process begins as soon as food reaches about 120 °C, and since the Air Fryer often operates at temperatures between 180 °C and 200 °C, it can promote the formation of acrylamides. Although some manufacturers recommend cooking at lower temperatures to reduce this risk, doing so can make the food less crispy and flavorful—one of the main attractions of this appliance.

Air fryers are often marketed as energy-efficient appliances compared to traditional ovens. However, they consume a lot of electricity to reach the high temperatures needed for quick cooking. In the long run, for those who use this appliance frequently, this can increase a household’s energy consumption. In the context of an energy crisis or environmental concerns, this intensive use can be a drawback for environmentally conscious users.

Although the air fryer requires less fat, high temperatures can also cause the natural fats in food to oxidize. This oxidation process produces compounds that are potentially harmful to health, including free radicals. These reactive molecules can damage cells, increase inflammation, and contribute to premature cellular aging. Repeatedly cooking certain high-fat foods can therefore, over the long term, lead to an accumulation of oxidized compounds that are not beneficial to health.

One of the most powerful marketing arguments for air fryers is their ability to produce food with less fat compared to traditional deep fryers. However, it’s important to note that using less oil doesn’t necessarily mean healthier cooking. In fact, frying in an air fryer does not replace the benefits of steaming or low-temperature cooking—or gentle steaming (my favorite, the Vitaliseur)—which preserve essential nutrients and limit the formation of toxic compounds. Fried foods, even when prepared in an air fryer, often retain a high calorie density, which can undermine a balanced diet if not consumed in moderation.

Air fryers are often made with nonstick coatings based on PTFE (polytetrafluoroethylene) compounds—similar to Teflon—that are resistant to high temperatures. However, if heated beyond their tolerance threshold (approximately 250 °C), these materials can release toxic fumes. This may be a concern for users who repeatedly or for extended periods operate their appliances at high temperatures. The substances released can irritate the respiratory system, and some studies suggest they may also pose long-term health risks.

The boom in air fryers has led to massive production of these appliances, which are often made of plastic and other non-biodegradable materials. Air fryers are household appliances prone to rapid obsolescence and must be replaced when they break down. Furthermore, the composite materials and electronic components they contain make them difficult to recycle, and few models are designed to be easily repairable. This type of product therefore contributes to electronic waste, which poses a growing problem for the environment.

Finally, despite their ability to reduce oil usage, air fryers tend to dry out certain foods, particularly those that are already low in fat, such as vegetables. This can alter the texture, make dishes too dry, and require the addition of oil or other fats, thereby diminishing the calorie-reduction benefit. Furthermore, foods cooked in an air fryer may sometimes lack the rich flavor associated with traditional frying, which can disappoint lovers of authentic cuisine.

The air fryer could be an interesting alternative for those who want to cut back on their oil intake while still enjoying the crispy texture of fried foods from time to time.

However, it is important to remain vigilant about potential harmful effects on both health and the environment. We should opt for cooking methods that are better for our health and the environment, and not rely solely on this appliance for “healthy” meals.

A balanced approach to cooking, incorporating a variety of techniques—such as gentle steaming, the Omnicuiseur, the Thermomix, braising, stir-frying, and grilling on a plancha—remains the best way to preserve the nutritional quality of food while reducing the risk of toxic compounds forming and protecting the environment.

With this overview of the risks associated with the Air Fryer, I encourage you to use it in moderation and thoughtfully, as a complement to other cooking methods, to support a happy, truly healthy, and environmentally friendly lifestyle. Thank you