The processing method of fresh tremella is: wash with white vinegar, 1. First, soak the tremella, rinse off the dust on the surface of tremella with clear water, and then put it in a clean bowl with the root of tremella facing up. 2. Pour warm water from the root of tremella into a bowl, just past tremella, then add a spoonful of white vinegar and gently stir with a spoon. 3. Let the white vinegar completely melt into the water, and then put the tremella in a bowl. After 5 minutes, pour off the water and add a little salt. 4. Grab another handful of starch, pour it into clear water, tear the tremella into small flowers, put it in for cleaning, rub it with your hands, and finally wash it again with clear water.

Tremella fuciformis is the fruiting body of tremella fuciformis, a basidiomycete fungus, which consists of 10 thin and wrinkled flat petals. Tremella fruiting body is pure white to milky white, generally chrysanthemum-shaped or cockscomb-shaped, soft and white, translucent and elastic. Shrinkage after drying, horny, hard and brittle, white or beige. It has the reputation of "the crown of bacteria".

Wild tremella is mainly distributed in mountainous areas of Sichuan, Yunnan, Fujian, Guizhou, Anhui, Hunan, Guangxi, Taiwan Province and other provinces and cities. The main cultivation methods are bag material cultivation and material saving cultivation. Among them, the most famous alternative cultivation of tremella fuciformis is Fujian Gutian tremella fuciformis; Duanmu Tremella is the most famous tremella in Tongjiang, Sichuan.

During the Ming and Qing dynasties, tremella with good natural appearance has always been a good product for emperors and dignitaries to keep healthy and live longer. For example, De Ling, a female official in the Qing Dynasty, said in Yu Xiang Lu: "The market price of things like tremella is extremely expensive, and often a small box of tremella can only be bought for one or two taels of silver.