Shiitake mushroom is the star among the mushrooms. The top surface of the shiitake mushrooms is light black, the mushroom pattern is blooming, white, and the bottom of the mushrooms is pale yellow. Shiitake is named for its pattern on the top. The colder the weather, the higher the yield and the better the quality of the mushrooms. The meat is thick, tender and delicious, and it has a refreshing taste. Shiitake mushrooms are the top grade of shiitake mushrooms. They are known as "mountain treasures". They are famous at home and abroad for their large size, thick mushrooms, low water content, and long shelf life. , Bingjiyujie is famous for its mushroom altar, and because of its beautiful and crunchy appearance, it is called Xijiajiazhen. Shiitake is rich in protein and amino acids. According to analysis, Shiitake contains crude protein of 23.2% ~ 24.3%, crude fat of 2.92% ~ 3.37%, water solubility of 50 ~ 74mg / ml, and minerals such as calcium, zinc, phosphorus, iron and many vitamins. The amino acid content is extremely high, containing 17 kinds of amino acids required by the human body and rich in spore mushroom polysaccharides, the VD content reaches 120 international units, and it contains a large amount of spurine purine.