**Pleurotus ostreatus has slightly different colors in summer and winter. In summer, because of the high temperature, it grows fast and has a light color. The winter grows longer and the color is darker. But the taste, taste and nutritional value are the same. **After buying the oyster mushroom, try to eat it on the same day. If it is stored in the refrigerator, it is best not to exceed 2 days.
Fresh: the edge of the mushroom is wrapped inward, like a small umbrella, and the edges are very neat, without any cracking
Not fresh: the edges of the mushroom pieces are flat and the edges are not neat and cracked.