About 10-15 minutes. The time required to bake potatoes in the air fryer will vary depending on the size and cutting method of the potatoes. Generally, the air fryer needs to be preheated in advance during the roasting process, and it usually takes 10-15 minutes during the baking process. , because if the time is too short, the inside of the potato will be raw, and if the time is too long, the outside of the potato will be burnt. 10-15 minutes can make the surface of the potato in an evolving state and the inside of the potato will be cooked.