Watch out for indications of mold. If you see any green mold, white fuzzy mould, or darkish black spots (mildew) to the mushroom, do not try to eat it. Don’t worry if you see blue staining—This really is prevalent in Psilocybe mushrooms and an indicator that the mushrooms contain psilocybin.  https://psychedelicfarmmeds.com/product/buy-mr-mushies-chocolate-bar-4g/