• Organic Rye Berry Foundation: Known as the professional's choice for grain spawn. Our organic rye berries provide a dense, nutrient-rich base that holds moisture deeply without clumping, ensuring rapid and even mycelial colonization.
• Premium CVG Substrate Layer: Balanced to perfect field capacity, our CVG (Coco Coir, Vermiculite, Gypsum) blend is layered directly on top. This substrate is the industry standard for dung-loving species, providing essential aeration, pH stabilization, and moisture retention while naturally resisting common contaminants.
• Versatile Performance: While expertly tuned for dung-loving varieties, this precise mix is also highly effective for most gourmet species, including Oysters and Pioppino.

• Self-Healing Injection Port: Inoculate with confidence using your favorite liquid culture or spore syringe without exposing the bag to open air.
• 0.2-Micron Filter Patch: Allows for critical gas exchange during colonization while acting as a barrier against even the smallest airborne contaminants.
• Compact & Fast: The 1.5 lb. size is optimized for speed, reaching full colonization and moving to the fruiting stage faster than larger, bulkier blocks.
• Pressure-Sterilized: Each bag undergoes a rigorous commercial-grade sterilization cycle to ensure a 100% clean starting point for your mycelium.

Just inject, incubate, and harvest. Your mushrooms grow directly in the bag—no monotubs, no mess, and no extra equipment required.

Check out our Blog on How to Use the PureSpawn AIO Grow Bag  HERE