Air fryer roasting chestnuts first to preheat, probably 200 degrees for 3-5 minutes.

To reach the temperature needed to roast chestnuts, so that the roasted chestnuts will be faster and more delicious.

Then put the chestnuts into the fryer, first 200 degrees 7 minutes to bake for a while, and then pull out of the fryer to turn the chestnuts, and then 200 degrees to bake for 5 minutes.