It is recommended to soak the ears in cold water. It takes about 6 hours to soak in cold water. The black fungus brewed in this way has a good taste, sufficient toughness and sufficient weight. If soaked in cold water, the volume of dried fungus can be increased by more than four times, while soaking dry fungus in warm water can only increase its volume by three times. You can also add some white vinegar when soaking, which can effectively remove impurities in the fungus.

It is recommended to soak the ears in cold water. It takes about 6 hours to soak in cold water. The black fungus brewed in this way has a good taste, sufficient toughness and sufficient weight. If soaked in cold water, the volume of dried fungus can be increased by more than four times, while soaking dry fungus in warm water can only increase its volume by three times. You can also add some white vinegar when soaking, which can effectively remove impurities in the fungus.