Air fryers have quickly become one of the most popular kitchen appliances in modern households. Praised for their convenience and ability to cook crispy food with less oil, they are often considered a healthier alternative to deep frying. However, food safety experts warn that improper use of air fryers may lead to serious health risks, including food poisoning.

The image associated with this warning shows food wrapped in aluminum foil inside an air fryer—an everyday practice that many users believe is harmless. Yet doctors and food safety specialists caution that small mistakes like these can increase the risk of contamination and improper cooking.

Mistake 1: Using Aluminum Foil Incorrectly

One of the most common mistakes is lining the air fryer basket with aluminum foil. While foil can help with cleanup, it can block proper air circulation if used incorrectly. Air fryers rely on hot air flowing evenly around food to cook it thoroughly.

When airflow is restricted, food may cook unevenly, leaving some parts undercooked. Undercooked meat, especially poultry and seafood, can harbor harmful bacteria such as Salmonella or Campylobacter, increasing the risk of food poisoning.

Mistake 2: Overcrowding the Basket

Another frequent error is overloading the air fryer basket. Many users try to cook large portions at once to save time, but overcrowding prevents hot air from circulating properly.

Experts warn that food piled too closely together may not reach a safe internal temperature. This is particularly dangerous for raw meats, which must be fully cooked to kill bacteria. Cooking in smaller batches ensures food is heated evenly and safely.

Mistake 3: Reheating Food Improperly

Air fryers are often used to reheat leftovers, but reheating food without reaching sufficient temperatures can be risky. Bacteria that survived initial cooking or grew during storage may not be eliminated if the food is only warmed rather than thoroughly reheated.

Doctors advise reheating food until it is steaming hot throughout. Reheating the same food multiple times further increases the risk of bacterial growth.

Mistake 4: Failing to Clean the Air Fryer Regularly

Food residue, grease, and crumbs can accumulate inside the air fryer over time. If not cleaned properly, these residues may become breeding grounds for bacteria and mold.

Experts emphasize that air fryers should be cleaned after each use, especially the basket and tray. Built-up grease can also burn during cooking, producing harmful compounds that affect both food safety and taste.

Mistake 5: Cooking Raw and Cooked Foods Together

Some users place raw meat and ready-to-eat foods into the air fryer at the same time. This practice can cause cross-contamination, where bacteria from raw foods transfer to cooked items.

Food safety professionals recommend cooking raw proteins separately and using clean utensils when handling cooked food. This simple step can significantly reduce the risk of foodborne illness.

Why These Mistakes Matter

The popularity of air fryers has led many people to assume they are foolproof. However, doctors stress that no appliance can replace proper food handling practices. The image of foil-wrapped food inside an air fryer highlights how easily convenience can lead to unsafe habits.

Food poisoning symptoms—including nausea, vomiting, diarrhea, abdominal pain, and fever—can appear within hours or days after consuming contaminated food. While many cases are mild, severe infections can be dangerous for children, elderly individuals, and those with weakened immune systems.

How to Use an Air Fryer Safely

Experts recommend the following safety tips:

• Avoid blocking airflow with foil or parchment paper

• Do not overcrowd the basket

• Cook food to safe internal temperatures

• Clean the air fryer thoroughly after each use

• Store and reheat leftovers properly

A Balanced Perspective

Doctors emphasize that air fryers are not inherently dangerous. When used correctly, they can be a safe and effective cooking tool. The real danger lies in misuse and lack of awareness.

As air fryers continue to become a staple in kitchens worldwide, understanding how to use them safely is essential. Small mistakes may seem harmless, but over time they can lead to serious health consequences.