Watch out for indications of mould. If you see any green mildew, white fuzzy mold, or dim black spots (mildew) around the mushroom, usually do not consume it. Don’t worry if the thing is blue staining—This can be typical in Psilocybe mushrooms and an indicator that the mushrooms comprise psilocybin.  https://psychedelicfarmmeds.com/product/polka-dot-chocolate-bar/