Qing Dynasty Qianlong 1765 "Herbal Compendium Gleanings", recorded that: "to the spring equinox, the day is gradually warming up, vegetables are gradually turning black, bitter taste is not edible to the dry sun for dry, rice pots on the steam black, and then sun and then steam, and so on a number of times, exposure to very dry, stored in the percussion, can be stored for a long time, the name of moldy dry vegetables, that is, dried winter vegetables are also. Years old, out of the rather fragrant appetizing, silent dysentery and puerperium, to under the porridge, a great tonic." Food Constitution Hong secret" and "with the garden food list" also has "moldy vegetables" records, but the narrative is more simple.