Watch out for signs of mould. If you see any inexperienced mildew, white fuzzy mold, or dark black places (mildew) over the mushroom, will not take in it. Don’t fear if you see blue staining—This is certainly common in Psilocybe mushrooms and an indicator that the mushrooms consist of psilocybin.  https://psychedelicfarmmeds.com/product/trippy-treats-mushroom-chocolate-bar/