Here are a few signs of mushrooms that may have gone bad. They feel and look slimy and have a foul smell. They may also feel mushy, appear darker in color, have gray, blue, or green spots), and are shriveled. When in doubt, compost or discard them. I hope you find this helpful! Happy mushroom growing! ❤️🍄#pleurotusostreatus#fungi #fungus #mushrooms #mushroom #oystermushroom #mycology #fungilove #mushroomlove #growfood #sustainable #sustainability #recycle #reuse #foodwaste #reducereuserecycle #