Every winter solstice solar term, this kind of food is often eaten in the south of China.

Among glutinous rice cakes and glutinous rice cakes, glutinous rice balls are often eaten in southern China during the solar term from the winter solstice. An ancient poem says: "Every family makes glutinous rice balls, knowing that it is the winter solstice tomorrow." Tangyuan, also known as tangtuan and winter solstice, symbolizes reunion and perfection.