Can distiller's grains be used as a substrate for growing oyster mushrooms?
It is acceptable to use distiller's grains instead of wheat bran as a supplement for producing oyster mushrooms. The usual amount is about 20%, and the other 70-80% can be cottonseed hulls, sawdust, or similar materials. Because distiller's grains are fairly acidic, some lime or similar material should first be mixed in before use, bringing the pH down to 6-6.5.
It is acceptable to use distiller's grains instead of wheat bran as a supplement for producing oyster mushrooms. The usual amount is about 20%, and the other 70-80% can be cottonseed hulls, sawdust, or similar materials. Because distiller's grains are fairly acidic, some lime or similar material should first be mixed in before use, bringing the pH down to 6-6.5.