Grain Spawn Bag (3lb) - Mushroom Grain Bag - Sterile

3lb Sterilized Milo Grain Spawn Bag – Injection Port Included Get started with mushroom cultivation using our sterilized Milo grain spawn bag. Designed for consistency and reliability, each bag provides a clean, nutrient-rich medium for mycelium to colonize. All you need is a spore syringe or liquid culture to begin. Each bag features: 3 lbs of premium Milo (sorghum) grain, carefully hydrated and sterilized Self-healing injection port for simple and contamination-free inoculation 0.2 micron filter patch to allow gas exchange while keeping the substrate protected Why Milo for Mushroom Spawn Bags? Milo, also known as sorghum, is a small, hardy grain commonly used in animal feed and human foods. It’s a favorite in mushroom cultivation for its uniform size, nutrient-rich composition, and reliable moisture retention, making it an excellent medium for mycelial growth. Lower contamination risk Milo grains naturally contain fewer endospores and surface microbes than wheat or rye, ma