Agaricus blazei is washed with warm water. The keel flies to the blood.
Put the hairy Agaricus blazei and the keel flying through the water into a casserole, add ginger slices, polygonatum, and sand ginseng, and pour the water into the hairy Agaricus.
After the fire is boiled and boiled for about 3 hours, add salt to taste, then turn to high heat until it is boiled again.