Sterilized Grain Spawn Bag - 2 x 1kg bags

Our Sterilised Grain Spawn Bags are the perfect foundation for reliable mushroom cultivation. Made to order with a premium blend of Australian-grown wheat, oats, and millet, these bags are carefully prepared to support strong and balanced mycelium growth.

Each 1kg bag is sterilised in an autoclave and sealed in a sterile lab environment. During sterilisation, core bag temperatures are monitored and held at the correct level for the correct time, ensuring complete sterility. 

The bag features a 0.2-micron filter patch that allows essential gas exchange while blocking airborne contaminants, providing the ideal conditions for inoculation and colonisation.

✅ Made to Order – fresh bags prepared for you at the time of purchase.
✅ Premium Grain Mix – wheat, oats, and millet create a nutrient-rich substrate.
✅ Proven Sterility – verified with biological indicators and temperature monitoring.
✅ Ready to Inoculate – works with liquid culture, agar wedges, or spore syringes.
✅ Versatile & Scalable – suitable for hobby growers or small-scale projects.

📦 What’s Included

• 2 x 1kg sterilised grain spawn bag (wheat, oats & millet blend, made to order)

• Full sterility verification for peace of mind

• 0.2-micron filter patch for safe gas exchange

• Support from Mushroom Culture for your growing journey

💡 Perfect For

• Hobby growers moving beyond kits

• Cultivators scaling up their mushroom growing

• Reliable inoculation with liquid culture, agar wedges, or spore syringes

• Producing strong, healthy mushroom spawn at home