Mushrooms are rich in water and carbohydrates, which are easy to breed bacteria. However, the refrigerator is humid, and there are many miscellaneous bacteria. It is easy to accelerate the deterioration of mushrooms when stored in the refrigerator, so it does not last long.
Mushrooms with long white hairs are mostly considered to be white spores generated by aging of mushrooms due to long storage time. They are not toxic in themselves and will not have adverse effects after being eaten by human bodies. Therefore, mushrooms with long white hairs can continue to be eaten as long as they are not spoiled.