1. Wash and drain chestnuts, and cut a small hole at the bottom of each chestnut.

2. Put the pot on high pressure, pour in chestnuts, cover it, remove the air valve and heat it. After about three or four minutes, the pot is hot, and then turn down the heat.

Every few minutes, I grab the handle of the pot and shake it hard. Almost 20 minutes, you will smell a fragrance, turn off the fire and open the lid.