2. Under normal circumstances, if the lid is not covered, it takes about 8 minutes for fresh jiaozi to cook; If the lid is covered, fresh jiaozi will take about 5 minutes to cook. Jiaozi usually cooks before wrapping jiaozi. When all the jiaozi floats on the water, jiaozi is ripe.

3. jiaozi, which evolved from wonton, was originally named Jiaoer. In ancient times, it was called "prison pill", "flat food", "jiaozi bait", "pink horn", "crescent wonton" and "jiaozi". It is a traditional noodle of Han nationality with a history of 1800 years. Legend has it that it originated in Nieyang (now Dengzhou, Nanyang, Henan) in the Eastern Han Dynasty. Jiaozi, also known as jiaozi, is deeply loved by the people of China. It is a staple food for people in northern China, a local snack, and also a Chinese New Year food. There are various cooking methods in jiaozi, mainly including boiling, steaming, searing, frying, frying and baking.