1, it is best to soak in cold water (warm water can be used in winter) for 3 or 4 hours. The auricularia auricula can be soaked in cold water to 4 or 5 times the size; If you use warm water, you can only soak it to 3 or 4 times the size.

2. The fungus soaked in cold rice soup is fatter, softer and more delicious. If the fungus is dirty, you can use some vinegar first, then some salt, rub it clean and soak your hair.

3, can not eat fresh fungus. There is something called porphyrin in fresh fungus. After eating, people will get dermatitis when exposed to the sun, causing itching, redness and itching of the skin. Therefore, auricularia auricula should be exposed to the sun, porphyrin should be removed and dried before eating.

4. The dried fungus itself is not toxic, but the soaking time is too long, especially in summer, when bacteria multiply in large quantities, it will produce biotoxins and deteriorate the fungus. People are likely to be poisoned if they eat rotten fungus. Therefore, it is necessary to soak your hair in moderation. The fungus is soaked too much, and it can only be kept in the refrigerator for 24 hours at most.