Watch out for signs of mildew. If the thing is any green mildew, white fuzzy mold, or darkish black places (mildew) around the mushroom, will not eat it. Don’t stress if the thing is blue staining—This really is popular in Psilocybe mushrooms and an indicator that the mushrooms include psilocybin.  https://psilocybin-chocolate-bar12333.elbloglibre.com/33820010/facts-about-psilocybin-chocolate-bar-uk-revealed