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Our 5lb Bag of Colonized Rye Berry grain spawn bags with your favorite mushroom mycelium is perfect for incubating. We use 100% certified organic rye berries perfectly hydrated to the right moisture levels. Our rye berries are supplemented with gypsum and calcium for optimal results. We use the thickest bags available, to ensure the sterility of the block. Inoculation instructions are included. Every lot is produced in professional autoclaves and adheres to strict mycology standards and practices to ensure that customers receive the best quality possible.
5 lb Colonized Grain Spawn Block – Muggals Mix (90% Colonized, Ready to Ship)
Jumpstart your mushroom cultivation journey with our 5 lb block of colonized grain spawn, crafted with our unique Muggals Mix—a premium blend of high-nutrient grains optimized for vigorous mycelium growth and fast colonization.
🌱 Product Highlights:
✅ 90% Colonized & Ready to Ship: Skip the wait! This block is nearly fully colonized and prepped for immediate use.
🍄 Muggals Mix Advantage: Our signature mix promotes strong, healthy mycelium and faster colonization times compared to standard grain.
📦 5 lb Spawn Block: Ideal for medium to large grows or multiple small projects.
🔬 Sterile & Lab-Prepared: Created in a clean environment to ensure quality and minimize contamination risk.
Whether you're a seasoned grower or just getting started, this ready-to-use grain spawn takes the guesswork out of cultivation. Perfect for expanding to bulk or experimenting with your favorite gourmet or medicinal mushroom strains.
📦 Ships Fast! We only list blocks that are 90%+ colonized, so you’ll receive a fresh and active spawn ready for your next step. (We ship the blocks only when they have achieved 90% colonization).
🧠 Tip: Upon arrival, let it sit for 1–3 days to allow for full colonization if needed.
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