(1) Edible situation: The normal color of Flammulina velutipes is milky white, and it will appear yellowish after a few days of storage. This kind of Flammulina velutipes has not deteriorated, and its nutrients have not lost a lot, so it is completely edible.

(2) inedible situation: if the storage time is too long, the Flammulina velutipes will turn yellow and have some pungent smell, or there is no Mucor on the appearance of Flammulina velutipes, which indicates that Flammulina velutipes has rotted and deteriorated, and the nutrients in it have lost a lot, so this Flammulina velutipes is inedible.

2. Fresh Flammulina velutipes will have a growing period after being bought back. This kind of Flammulina velutipes plastic wrap can't be wrapped, let alone soaked in water. Put it directly on a clean plate and put it in the refrigerator. The temperature is adjusted at about 3~5 degrees, and it can be stored for a long time without turning yellow.