Watch out for signs of mold. If the thing is any inexperienced mold, white fuzzy mildew, or darkish black places (mildew) about the mushroom, do not consume it. Don’t get worried if you see blue staining—This is certainly popular in Psilocybe mushrooms and an indicator that the mushrooms comprise psilocybin.  https://psychedelicfarmmeds.com/product/polka-dot-chocolate-bar/