A mushroom grain spawn bag is a sterile bag filled with nutrient-rich grains (like rye, millet, or wheat) that have been inoculated with mushroom mycelium.
It serves as the "seed" for growing mushrooms, allowing the mycelium to fully colonize the grains.
Once colonized, the spawn is used to inoculate bulk substrates for large-scale mushroom production.

Yes, mushrooms can be grown from spores. 🌱 Spores are like the seeds of fungi, but they first need to germinate and form mycelium before producing mushrooms.
In practice, growers usually use grain spawn or liquid culture instead of raw spores, because spores take longer, are less predictable, and have a higher risk of contamination.

• Grain spawn: Sterilized grains colonized with mycelium, used to quickly inoculate bulk substrates.
• Sawdust spawn: Compressed sawdust infused with mycelium, ideal for logs and outdoor beds.
• Plug spawn: Wooden dowels colonized with mycelium, hammered into drilled holes in logs for mushroom growth.

Our company produces mushroom grain spawn under sterile, laboratory-controlled conditions to ensure purity. We carefully inoculate nutrient-rich grains with vigorous mushroom cultures and allow full mycelial colonization. Every batch is tested for quality and contamination-free growth, guaranteeing authentic and reliable spawn for cultivation.

Yes, we provide complete growing literature along with our spawn. Detailed guides and tutorials are also available on our YouTube channel House of Mushroom.

Mushroom spawn can be safely stored in the refrigerator for 4–6 months. The ideal storage temperature is around 6°C to maintain its viability