Surfin’ Spores 4-Pack Mushroom Grain Bags | 1lb Sterile Grain Spawn Bags for Growing w/Self-Healing Injection Port | Milo Grain Infused w/Oyster Shell and Gypsum (4-Pack)

Price: $34.95
(as of Mar 20, 2026 13:36:32 UTC – Details)


Surfin’ Spores 4-Pack of 1lb Sterilized Hydrated Grain Bags provides an efficient and reliable solution for mushroom cultivation. Each bag is filled with premium white milo grain infused with oyster shells, offering essential nutrients for vigorous mycelial growth. With advanced sterilization, precise hydration, and user-friendly self-healing injection ports, these grain bags streamline the inoculation process while ensuring contamination-free results. Whether you’re a beginner or an experienced grower, Surfin’ Spores grain bags deliver high-quality, high-yield performance for all your mushroom-growing needs.
【Premium Sterilized Grain Mix】 – Each bag contains a carefully sourced blend of milo, enriched with oyster shells and gypsum, providing essential nutrients for vigorous mycelial growth, improved nutrient absorption, and enhanced mushroom cultivation success.
【Industrial-Grade Sterilization & Hydration】- Our grain bags undergo rigorous sterilization in industrial autoclaves and are precisely hydrated to create a contamination-free, nutrient-rich environment for strong, healthy mycelium.
【Convenient Self-Healing Injection Ports】- Designed for effortless inoculation, each bag is equipped with a self-healing injection port, allowing you to introduce spores or liquid culture with ease while minimizing contamination risks.
【High-Yield & Versatile Cultivation】- Ideal for growing gourmet and medicinal mushrooms, these grain bags promote rapid mycelial colonization and are compatible with a variety of growing methods, including monotubs, grow bags, and bulk substrate transfers.
【Quality-Assured & Sustainably Sourced】- Our grain mix is sourced from trusted local farms and tested for sterility and hydration consistency. These bags can be stored at room temperature for several months without refrigeration, ensuring long-lasting freshness.