When making grain spawn, the gold standard has always been rye grain.
And that makes sense.
Rye is widely available, hydrates well- and is universally loved by almost any mushroom species.
But what if you can’t get rye grain? Is there any other grain that’s up to the task?
In fact, you can make amazing spawn out of a variety of different grains, some of which you probably have in your pantry right now.