Boil more water in jiaozi, and add a proper amount of salt to increase the boiling resistance of dumpling wrappers. Boil the water before putting jiaozi into the pot, and stir it fully from time to time to prevent jiaozi from sticking to the pot. Don't let the water boil too much, or the jiaozi will break easily. After the water boils, add a little cold water, and then add cold water after the water boils. Repeat this for three times. When you cook frozen jiaozi, you should observe the shape of jiaozi. jiaozi will soften slowly after cooking. If jiaozi floats on the water and the dumpling skin is uneven, it means that jiaozi is ripe. If jiaozi is frozen for too long, the water in the dumpling skin will evaporate, and jiaozi will not be easy to cook, and it will be a little raw. It is not advisable to cook it with a strong fire, but slowly cook jiaozi with a medium or small fire.

Frozen dumplings are a kind of food that can be eaten at any time by quick freezing the wrapped jiaozi to achieve refrigeration.