Sold in increments of 100 grams so that you can order the exact amount needed for your next batch of mushrooms. To minimize packaging, the total quantity you order will come in a single bag, or in increments of 1,000 grams if you order more than 1,000 grams.
Questions about how much grain to order? Check out the substrate calculator here.
Rye grain berries are the foundation of the standard grain spawn. The perfect balance of nutrients that mycelium crave while they colonize the spawn jar. Our grain is:
- Certified organic by Oregon Tilth
- Country of Origin: USA and Canada