An air fryer is a countertop kitchen appliance that circulates heated air around food to cook it. This cooking method can create a browned or crisp exterior on foods such as potatoes, vegetables and chicken. Cooking results depend on the temperature, preparation method and type of food.

A glass air fryer uses a heat-resistant glass cooking container, which may allow you to see food during cooking. Traditional basket-style air fryers generally use metal cooking baskets, often with nonstick coatings. Both use heated air, but their capacity, construction, visibility and cleaning requirements can differ.

The right size depends on how many servings you usually prepare. Compact air fryers can be practical for one or two people, while larger models offer more cooking space for households preparing multiple portions. Compare the usable cooking area and container capacity rather than relying on advertised capacity alone.

Many frozen foods, including fries, vegetables and prepared snacks, can be cooked in an air fryer. Cooking times and temperatures vary depending on the food and appliance. Follow package instructions where available, avoid overcrowding the cooking container and check that food reaches a safe internal temperature when required.

Air fryers can cook many foods with little or no added oil because they use circulating hot air rather than deep frying. However, some ingredients may benefit from a small amount of oil for browning or texture. The amount needed depends on the recipe and the food being prepared.

Unplug the air fryer and allow it to cool completely before cleaning. Remove food residue from the basket or cooking container and wash removable parts according to the manufacturer's instructions. Avoid abrasive cleaning materials on coated surfaces, and never immerse electrical components in water unless specifically permitted by the manufacturer.