2. It depends on how big jiaozi is, and the tightness of jiaozi has a lot to do with it. Red beans and peanuts take a long time to soak, and glutinous rice is enough for half an hour. It takes an hour to steam in a pressure cooker.

3. The pressure cooker can cook for 20 minutes to half an hour. If it's too long, it's easy to cook jiaozi. If the pressure cooker is not tightly wrapped, it may take 2 hours to cook thoroughly, otherwise there is a grain in the middle. If the bag is loose, it will be faster, an hour and a half.

The time of cooking zongzi is related to the size of the zongzi you wrapped. Glutinous rice must be soaked first, and it is best to put some gray water (salty) when soaking, so that the cooked zongzi is delicious. To know whether it is cooked or not, cook it to a certain extent and press it with your fingers. If you feel soft and sticky, it is ripe. Otherwise, turn it upside down and continue cooking. It takes more than six hours for my wife to cook rice dumplings about two kilograms with ordinary aluminum pot. Our wood is free, and several families are very busy cooking together, sometimes up to eight hours.