How do you know when they are gone off?? They are Stropharia Cubenis I bought of the net are they are all black.
They sound bad to me. Cubes should have whiteish stems, brown caps and mabye some dark purple spores on them. If they are all black it is probibally mold. Post this in the psychedelics forum to get more help. Obviously many of the pot heads here don't know much about shrooms.