Dry fungus can't stay overnight after soaking.
Dry auricularia auricula can't be soaked overnight, because it may breed a kind of bacteria called Pseudomonas cocoanum, which can't be washed off and sterilized at high temperature. If you eat this deteriorated auricularia auricula by mistake, it may cause gastrointestinal discomfort, dizziness, vomiting and diarrhea.
The soaked dried auricularia auricula is very easy to breed bacteria because of the humid environment, so it is suggested to eat it immediately after soaking dried auricularia auricula, or wait until it is necessary to eat auricularia auricula, so as to ensure the safety of edible auricularia auricula and the nutritional value of auricularia auricula.
When cooking auricularia auricula, it must be cleaned first. Generally, dry auricularia auricula can be cooked after soaking in water1~ 2 hours, and bacteria will start to grow after soaking for more than four hours. When cooking auricularia auricula, stir-fry it evenly, so that it can be eaten after it is cooked, or it can be cooked in advance.