Auricularia auricula can be eaten after soaking for a long time and then drying. As long as Auricularia auricula is not moldy, it can be eaten after drying and soaking. However, after soaking for a long time, auricularia auricula is prone to the breeding of bacterial germs and mildew. At the same time, some nutrients in auricularia auricula will be lost after soaking for a long time, which will affect the taste. Therefore, it is recommended to soak in moderation and the time should not be too long.

Precautions for Auricularia auricula:

1. Fresh Auricularia auricula is inedible. This is because fresh fungus contains a kind of "porphyrin" substance. After eating fresh fungus, plant solar dermatitis will occur after being irradiated by sunlight. Therefore, fungus needs to be exposed to sunlight to decompose porphyrin and make it into dried products for sale.

2. The dried auricularia auricula needs to be soaked and washed before eating, and soaked in warm water as much as possible.