According to Baidu's experience, jiaozi is a traditional food in China, and it is also an activity that many families like. In the process of wrapping jiaozi, there is a detail about how to preserve the wrapped jiaozi to prevent them from sticking together or cracking. Some people will choose to put napkins under the tray, which has the following advantages:

It can absorb excess water on the dumpling skin and prevent the dumpling skin from becoming too soft or sticking.

It can keep the dumpling skin dry and elastic and prevent the dumpling skin from becoming too dry or cracked.

Direct contact between the receiving tray and jiaozi can be isolated to prevent stains or bacteria on the receiving tray from polluting jiaozi.