Watch out for indications of mold. If the thing is any environmentally friendly mold, white fuzzy mould, or dim black places (mildew) around the mushroom, never try to eat it. Don’t fret if you see blue staining—This is certainly common in Psilocybe mushrooms and an indicator the mushrooms have psilocybin.  https://lorenzoftgsg.vidublog.com/32891147/about-psilocybin-chocolate-bars-nyc