The function of soaking in water is to make the glutinous rice absorb and swell. Although the soaking time can be shortened by using hot water, it is easy for hot water to make the glutinous rice deteriorate and sour, which will change the taste of the wrapped zongzi, so the glutinous rice soaked in cold water is better.

If the time is tight, you can soak it in warm water of about 3 degrees for about 4 minutes, but you should always pay attention to the state of glutinous rice, and the soaking time should not be too long, otherwise it will easily lead to sourness.