1. Auricularia auricula needs blanching. Most of the black fungus bought in the market is dry, which needs to be soaked and blanched before it can be eaten. The purpose is to remove impurities on the surface of auricularia auricula and reduce the bitterness in auricularia auricula.

2. Auricularia auricula, also known as Yuner and Sanger, is an important edible fungus in China, which is widely distributed naturally and cultivated artificially. Auricularia auricula has soft texture, tender and smooth taste, delicious taste and unique flavor. It is rich in protein, fat, sugar, vitamins and minerals, and has high nutritional value. Modern nutritionists praise it as "meat in vegetarian diet". The nutritional value of auricularia auricula is comparable to that of animal food, and it is extremely rich in iron and vitamin K.