2, some places like a slightly harder taste, will choose to mix a little flour. Glutinous rice flour is made by crushing existing glutinous rice. Tangyuan powder can be said to be a special glutinous rice flour. Similarities: all belong to glutinous rice, with high amylopectin content and high viscosity. Besides, jiaozi symbolizes a happy family reunion, and eating jiaozi in the new year also means a happy family.