An important ingredient in Baoqiyuan food: Dioscorea zingiberensis, which is steamed for nine times and dried for nine times, has the effects of stimulating appetite, promoting digestion, relieving pain and dispelling cold. The best producing areas of Dioscorea zingiberensis are Zhejiang and Yunnan. After Dioscorea zingiberensis is processed by the traditional method of nine steaming and nine drying, its medicinal properties will be milder, the yang will be more sufficient, and the effect of eliminating dampness and dispelling cold will be better.