Usually made of rice flour or wheat flour, fresh peaches are also useful if the birthday is timely. Birthday peaches are prepared by family members or presented by relatives and friends. On his birthday, in several boxes of Chen Yushoutang, nine peaches were stacked on one plate and tied to three plates. The theory of longevity peach originated very early. There is a cloud in "Nerve": "There is a tree in the east, which is fifty feet high and named peach. His son is three feet two inches in diameter, and it is delicious and makes people live longer. In myth, the Queen Mother of the West held a flat peach party in Yaochi for her birthday, so peaches were used for future birthdays. When steaming flour peaches, the peach mouth must be dyed red.