When roasting pork belly slices in an air fryer, it is necessary to roast them at 200 degrees for 20 minutes first, and then turn them over for 20 minutes after roasting, so that the pork belly slices can be heated evenly.

The working principle of the air fryer is "high-speed air circulation technology". Hot air is generated by the heat pipe in the high-temperature heater, and then the high-temperature air is blown into the pan by a fan to heat the food, so that the hot air circulates in the closed space, and the food is fried by using the grease of the food itself, so that the food is dehydrated and the surface becomes golden and crisp, thus achieving the frying effect.