Look out for signs of mildew. If the thing is any green mildew, white fuzzy mildew, or dark black spots (mildew) to the mushroom, do not eat it. Don’t fret if you see blue staining—This is certainly common in Psilocybe mushrooms and an indicator that the mushrooms have psilocybin.  Taking https://atozbookmarkc.com/story19725525/mushroom-chocolate-bar-copyright-5-grams-an-overview