1. Soaking black fungus, it is best to use cold water, because cold water sends fungus, which is crisp, tender and refreshing, and easy to store. It takes about 3-4 hours;

2. If you are in a hurry to use it, you can also soak it in warm water within an hour, but the taste is soft and sticky, which is not easy to preserve;

3. If the fungus is soaked in the cooked cold rice soup, it will look fatter, softer and more delicious;

4. If you are worried that the dirty things on the fungus can't be washed off with water, you can wash them with a small amount of vinegar and salt before soaking your hair;

5. You can add a little starch to the soaked water and stir it evenly, which is also beneficial to remove the fine dust on the fungus.