Also known as jellyfish, white skin. The jellyfish is like a parachute and a white mushroom . The part shaped like a mushroom head is “jellyfish skin”; the mouth and tentacles like mushroom stalks under the umbrella cover are “jellyfish head”. The jellyfish skin is a layer of glue with high nutritional value. The head of the jellyfish is slightly harder, and the nutritive glue is similar to that of the sting skin. China was the first country to eat jellyfish, and there is a record of eating jellyfish in the “Natural History” written by Zhang Hua in the Jin Dynasty. Today, jellyfish has become a delicacy at the banquet. Jellyfish mass ratio of the first jellyfish difference skin, generally not used. The jellyfish skin used in cooking is processed by adding salt and alum to remove water and toxins from the jellyfish bath.