Look out for signs of mildew. If you see any inexperienced mould, white fuzzy mildew, or dim black places (mildew) over the mushroom, don't consume it. Don’t get worried if you see blue staining—This is certainly typical in Psilocybe mushrooms and an indicator the mushrooms comprise psilocybin.  Scent the mushrooms. https://manuelhxlzn.bcbloggers.com/33032190/details-fiction-and-psilocybin-chocolate-bar-penis-envy