How to judge whether Pleurotus eryngii is bad?

Judging methods such as vision, touch and smell.

1. Visual inspection: Fresh Pleurotus eryngii should be light brown or beige, not black or moldy. There are obvious brown spots, black spots or dark colors on the surface, which have begun to rot.

2, feel check: gently press, fresh Pleurotus eryngii should have a certain elasticity and moist feeling, no sticky feeling. It feels dry, soft and even sticky, but it has expired.

3. Smell inspection: the aroma of fresh Pleurotus eryngii is light and pleasant; Give off a strange smell (odor), indicating that there is a quality problem.