Sterilized Grain Spawn Bags | 2 lb & 5 lb | Rye, Popcorn, 5-Grain Blend | ShroomShow™

Our sterilized grain spawn bags are prepared with premium rye berries, popcorn, or 5-grain blend for fast colonization and strong mycelium growth. Each bag is perfectly hydrated, enriched with gypsum for better colonization, and sterilized in a professional autoclave. Sealed with a self-healing injection port and a 0.2-micron filter patch for clean, easy inoculation.

✅ Rye Grain – hearty and reliable colonizer
✅ Popcorn Grain – superior airflow for aggressive strains
✅ 5-Grain Blend – nutrient-rich mix for vigorous growth

🔹 Great for liquid culture or grain-to-grain transfers
🔹 Clean, lab-tested, and contamination-free
🔹 2 lb or 5 lb bags for flexible inoculation projects

Grain Spawn Bulk Deals — Choose Your Pack!

BUNDLE NAME WHAT'S INCLUDED WEIGHT PRICE SAVINGS
Starter Pack 3 x 2 lb Bags 6 lb $24.99 Save ~7%
Small Batch Pack 5 x 2 lb Bags 10 lb $38.99 Save ~13%
Ultimate Grower Bundle 10 x 2 lb Bags 20 lb $69.99 Save ~22%
Grow Lab Wholesale Pack 20 x 2 lb Bags 40 lb $139.99 Save ~22%