I have a jar of grain spawn that is about 5 months old, its been sitting in storage at room temperature.
Obviously not ideal, but its a strain that I would like to revive.
I was thinking of just doing a grain-to-grain transfer, and see how it goes.
Or have others had better experience reviving old mycelium in other mediums first? (e.g. to agar, or to liquid first, to revive it?).