Watch out for indications of mold. If you see any inexperienced mould, white fuzzy mould, or darkish black places (mildew) to the mushroom, tend not to eat it. Don’t get worried if you see blue staining—This can be common in Psilocybe mushrooms and an indicator that the mushrooms contain psilocybin.  https://socialicus.com/story4624957/5-simple-statements-about-psilocybin-chocolate-bar-uk-explained