The air fryer can realize uniform heating of food without turning. The air fryer makes the surface of food crisp and golden yellow by high-speed circulating hot air, and at the same time, the inside can be fully cooked. Not turning over can effectively reduce the use of grease and be healthier. In addition, the operation time and energy can be saved without turning over, which makes cooking easier and more convenient. However, for some specific ingredients, such as large pieces of meat, a slight rotation can make both sides evenly heated. Therefore, the choice of turning over should be decided according to the characteristics of ingredients and personal taste. Generally speaking, not turning over is one of the advantages of air fryer.