1. Taste: Cooking wonton in cold water ensures the integrity and taste of wonton, while boiling wonton in hot water will cause problems such as broken skin and stuffing leakage.

2. The fillings are cooked at the same time: the cooking time of wonton is increased in cold water, so that the dough has sufficient reaction time with water, so that the fillings are cooked at the same time, while the fillings are not cooked at the same time in hot water.