Function：

Instructions：

1. Soak the Henan yam (M) in water for about 1 hour, rinse thoroughly for later use;
2. Remove the kernel of the jujubes (XL), rinse the Ningxia fructus thoroughly for later use;
3. Soak the aged dried mandarin peel in water, remove its vein, peel the ginger and cut it into slices for later use;
4. Defrost the American frozen conches, cut and remove the intestines, rinse thoroughly;
5. Defrost the frozen crocodile ribs, blanch them in water with conches, ginger and spring onion and rinse thoroughly;
6. Put all ingredients into a steaming pot, pour in some hot water, stew over water for about 2 hours, add salt before serving.