Look out for signs of mold. If the thing is any green mold, white fuzzy mold, or dim black spots (mildew) over the mushroom, usually do not eat it. Don’t fear if the thing is blue staining—That is popular in Psilocybe mushrooms and an indicator that the mushrooms include psilocybin. https://josueuivhs.topbloghub.com/41113453/helping-the-others-realize-the-advantages-of-mushroom-chocolate-bars