Air fryer is a high-tech cooking tool. Its principle is to use air to replace the hot oil in the original frying pan, and to use convection heating similar to the sun's hot air to form a rapidly circulating heat flow in the closed pan, so that the food is cooked, and at the same time, the hot air also blows away the moisture on the surface of the food, so that the ingredients can achieve the effect of approximate frying without rolling oil.