First of all, jiaozi should be properly thick when wrapping, and light when wrapping.

Secondly, there is less stuffing in jiaozi, because it is best to wrap it when wrapping it. Too much stuffing will make the skin thin.

The third is to wrap the jiaozi and put it in the refrigerator as soon as possible, so as to avoid dilution and cracks if it is left outside for a long time.