When making dendrobium soup, put the following ingredients:

Material preparation: old duck, dendrobium, iron stick yam, lotus seeds, barley, green onion, ginger, salt, cooking wine.

1. 8 pieces of dendrobium and appropriate amount of barley, rinse well.

2. Put it in a pot, add water and simmer for about 20 minutes. This time is just enough to process the duck.

3. An old duck, cut into large pieces and blanch it in water to remove the blood foam.

4. Peel and wash one iron yam, and add an appropriate amount of lotus seeds.

5. Put the old duck and iron stick yam into the soup in step 1, and add a piece of old ginger, a few green onions, and an appropriate amount of cooking wine. After an hour, add the lotus seeds, simmer for another 40 minutes, add a small amount of salt to taste, and turn off the heat.