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3lb Sterile Grain Bag – Premium Milo / Sorghum Grain Spawn
Now includes a FREE self-healing injection port.
Our Best-Selling Grain Spawn
The 3lb Milo/Sorghum Sterile Grain Bag is trusted by growers who want consistent colonization, clean preparation, and reliable performance.
Carefully hydrated and sterilized in small batches, this grain provides the ideal structure and nutrient profile for strong, even mycelial growth.
Why Growers Choose This Bag
- Premium Organic Milo / Sorghum – Small grains create high inoculation points
- Optimized Hydration – Balanced moisture for aggressive colonization
- Sterilized 2.5 Hours at 15–17 PSI – Processed in SH Scientific autoclaves
- Integrated Self-Healing Injection Port – Clean, easy inoculation
- Vacuum-Sealed Secondary Bag – Extended shelf life and added sterility protection
What’s Included
- 3lb hydrated Milo / Sorghum grain
- Unicorn 10T filter patch bag
- Microppose self-healing injection port
- Outer 4mil vacuum-sealed protection bag
Quick Start Guide
| Step | Instructions |
|---|---|
| 1. Inspect | Confirm the bag is sealed and injection port is intact. |
| 2. Inoculate | Clean injection port with 70% isopropyl alcohol. Inject 4–8 mL of liquid culture or spore solution. |
| 3. Break & Mix (Optional) | At 20–30% colonization, gently break and redistribute for faster growth. |
| 4. Incubate | Store at 70–75°F in a clean, low-light environment. Most bags fully colonize in 10–18 days. |
| 5. Use or Refrigerate | Use immediately once colonized, or refrigerate up to 2 weeks before transferring to bulk substrate. |
Storage Guidelines
- Store sealed between 45°F and 70°F
- Use as soon as possible for peak performance
- Do not freeze
Explore Other Grain Options
- Corn Grain Bags – Larger kernel structure
- Drippy Corn – Enhanced nutrient profile
- Millet Grain Bags – Maximum inoculation points
Need Help?
Use the chat button in the lower right for order support.
Use the chat button in the lower right for order support.
Disclaimer: Results vary depending on genetics and environment. For laboratory use only. All sales are final, with concerns handled case-by-case.





