The easiest way to tell if mushrooms are bad is by touching them, according to EatByDate. Spoiled mushrooms have a slimy or sticky surface and tend to darken in color. Spoiled mushrooms also feel mushy and may have mold on them.Know More
Generally, mushrooms last around seven to 10 days in the refrigerator. However, improper storage shortens the shelf life of mushrooms. The best way to store mushrooms is to place them whole and unpeeled in a bag in the refrigerator. Another option is to cook the mushrooms, and store them in airtight containers in the freezer. Frozen mushrooms last around six to eight months.