According to Kyushu Drunk Catering Network, after the water in the pot is boiled, put your frozen hands in the pot. When the water in the pot is boiled, add an appropriate amount of cold water to the pot. When there are wrinkles on the surface of the hand, it means that the hand is ripe. This process usually takes 10 minutes.

If the frozen glutinous rice thread is cooked for too long, the skin of the glutinous rice thread will be boiled and the stuffing will be broken, which will affect the taste. Generally, it will not exceed 10 minute.