Before making delicious food, wash the surface of dried mushrooms with water and remove the roots, leaving only a part. Find a clean vegetable basin, pour a proper amount of warm water, add some white sugar to the warm water, stir well, and then put the mushrooms in when the water becomes slightly sweet. Soak the original rooted side down in warm water until the mushrooms are soft. Then wash it again with clear water, so that the mushrooms will be clean and more delicious.