Chestnut is warm and sweet, while black beans and beef are flat and sweet. Although there is no taboo in the compatibility of the three, eating beef and chestnut together will reduce the nutritional value beneficial to the human body, so it is not suitable to make soup together. Chestnut belongs to spleen, kidney and stomach meridian, which can nourish stomach and strengthen spleen, tonify kidney and strengthen tendons, promote blood circulation and stop bleeding. It is suitable for weakness of spleen and stomach, nausea, diarrhea, physical weakness, backache and leg weakness, vomiting blood, epistaxis, hematochezia, abscess, swelling and pain of fracture and swollen scrofula. Black beans belong to the spleen and kidney meridian, which can replenish blood and soothe the nerves, improve eyesight and strengthen the spleen, tonify kidney and nourish yin, and detoxify. It is suitable for spleen edema, beriberi edema, physical weakness, night sweats and spontaneous sweating in children, especially for the elderly with fever, physical weakness, deafness and enuresis in children. Beef belongs to the spleen and stomach meridian, which can tonify the spleen and stomach, replenish qi, strengthen bones and muscles, resolve phlegm and stop wind. Suitable for anemia, chronic diseases, malnutrition, muscle weakness, manual workers, athletes and postoperative anemia. Ingredients of black bean beef soup: beef 300g, black bean 100g, salt 5g, shallot 1 root, and 3 slices of ginger.

Practice: prepare beef, black beans and ginger slices. Boil the water in the soup pot and blanch the beef pieces until there is no blood. Then drain the beef from the pot and rinse it with beef for later use. Put all the ingredients in a saucepan and add some water. Turn on the power and simmer for about four hours, and drain the foam during the stew. Finally, before taking out the pot, add a proper amount of fine salt.