1. Appearance: Auricularia auricula is a colloidal fungus, black or dark brown, with fine hairs or smooth surface, sometimes translucent, while mushrooms have various shapes, such as umbrella, flat top, bell, trumpet, marble, etc., and the colors are also colorful, ranging from white to brown.

2. Nutritional value: Auricularia auricula is rich in minerals such as protein, cellulose, iron and calcium, and various vitamins, and has the functions of clearing away heat and toxic materials, moistening lung, relieving cough and lowering cholesterol, while Lentinus edodes is rich in nutrients such as protein, vitamins, minerals and polysaccharides, and has the functions of improving immunity, resisting cancer and resisting aging.