Fresh mushrooms with white hairs can be eaten, it is a normal phenomenon, cleaned with boiling water can be eaten. The white hairs on the mushrooms are spores, which is a sign of aging of the mushrooms. It is a sign of aging and non-toxic, but the nutrition and taste are a bit poor. But if the mushrooms are moldy, you can't eat them, so as not to affect your health.

Preservation methods:

Salt water preservation: put fresh mushrooms in salt water, remove them after soaking, remove the water, put them into a plastic bag, and then put them in the refrigerator to preserve them, which can be preserved for more than ten days without deterioration.

Dry storage: Put the fresh mushrooms into the sun, dry them out as much as possible, then put them into an airtight container with some salt or desiccant at the bottom, they can be stored for a long time.

Cling bag preservation: Put fresh mushrooms in a cling bag and seal it to prevent too much contact with the air, which may cause mold and rot. As soon as some of them start to rot, they need to be cleaned out.