1, dried auricularia auricula has been left for too long, resulting in a musty smell of dried auricularia auricula.

2. In the production process of dried auricularia auricula, the water evaporates slowly, which is easy to breed bacteria, such as rice yeast acid, which leads to the deterioration of auricularia auricula.

3. The dried auricularia auricula has a pungent taste due to the addition of chemical antiseptic ingredients.