1. Generally, leeks and eggs are cooked in jiaozi for 15 minutes.

2. A more intuitive way to judge whether jiaozi is cooked is to see whether jiaozi has floated. Generally, no matter what kind of stuffing jiaozi is and how thick the dumpling skin is, it can be cooked for about one minute after it floats in boiling water. 3. When cooking jiaozi, it should be noted that jiaozi needs to stir with a spatula from time to time after cooking to avoid jiaozi sticking to the bottom of the pot. If jiaozi is boiled and frozen, it should not be thawed too long in advance, otherwise it will stick together easily and affect the taste.