1. Buy dried mushrooms: buy intact dried mushrooms in markets or shops, and try to choose mushrooms with good quality, full color and no wormholes.

2. Wash dried mushrooms: soak dried mushrooms in cold water or warm water to remove impurities such as dirt and dust.

3. Soak the dried mushrooms: soak the cleaned dried mushrooms in clean water for about 2-4 hours, or directly soak them in warm water for about 1-2 hours. Some mushrooms are very old or difficult to bubble, so you can use microwave oven to heat them for 2-3 minutes, and then soak them for 1-2 hours.

4. Replace the soaking water: The odor and trace toxins emitted by soaked mushrooms will affect the taste and quality of mushrooms, so it is recommended to avoid cooking directly with soaking water. It is recommended to pour out the soaking water after soaking for about 30 minutes, and then soak it again.

5. Cutting and cooking: blanch the soaked mushrooms in hot water for 1-2 minutes before preparing for cutting and cooking.

It should be noted that hot water or boiled water should be avoided in the process of soaking dried mushrooms, because high temperature may destroy the nutrients and taste of mushrooms. On the contrary, using warm water to soak hair can keep the nutrition and delicious taste of dried mushrooms.