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3lb Sterile Corn Grain Spawn – Now with a FREE Injection Port!
Premium Quality for Reliable Mycelium Growth
Achieve faster, more consistent colonization with our 3lb Sterile Corn Grain Spawn Bag. Made from organic popcorn grains, it ensures optimal hydration, advanced sterilization, and a contamination-free start for your projects.
Why Choose Our Sterile Corn Grain Spawn?
- ✅ Organic Popcorn Grains – High in nutrients and uniformly hydrated.
- ✅ Advanced Sterilization – Autoclaved at 15-17 PSI for contaminant-free grains.
- ✅ Rapid Colonization – Designed for efficient mycelial growth.
- ✅ Professional-Grade Quality – Trusted by hobbyists and experts.
What’s Included?
- 3lb Hydrated & Sterilized Organic Popcorn Grain – Ready for inoculation.
- Unicorn 10T Breathable Mycology Bag – Ensures gas exchange while maintaining sterility.
- Self-Healing Injection Port (Microppose) – Reduces contamination risk.
- 4mil Vacuum-Sealed Bag – Extends shelf life.
erred mushroom culture and begin your journey to fruitful results.
Quick Start:
| Step | Instructions |
|---|---|
| 1. Inspect | Ensure the bag is sealed and the filter patch and injection port are intact. |
| 2. Inoculate | Clean the injection port with alcohol. Inject 4-8 mL of liquid culture or spores using a sterile syringe. |
| 3. Shake (Optional) | Once 20–30% colonized, gently break up the mycelium to help spread growth (OPTIONAL). |
| 4. Wait | Let colonize at 70–75°F in a clean, dark space. Most bags finish in 10–18 days. |
| 5. Use or Store | Once fully colonized, use immediately or refrigerate for up to 2 weeks before transferring to bulk substrate. |
Storage and Support:
Storage: Keep your grain bag stored between 45°F and 70°F for best results. Use as soon as possible to prevent the grains from drying out or the natural sugars and nutrients from breaking down.
Need Assistance? Hit the chat button at the lower right for help with orders or questions.
Explore Other Mushroom Grains:
- Corn Grain Bags: Robust grain that holds moisture well, promoting vigorous growth.
- Drippy Corn: A nutrient-rich grain choice for enhanced mushroom yields.
- Millet Grain Bags: Small grains that offer high inoculation points for increased surface area.
🚀 Pairs Well With:
- 🚀 Not So Simple Substrate – Nutrient-rich, hydrated, and sterile for vigorous growth.
- 🚀 Simple Substrate (CVG Mix) – A coir, vermiculite, and gypsum blend, ideal for all skill levels.
💡 Pro Tip: Store in a cool, dark place (45°F-70°F) for freshness.
📦 Fast & Discreet Shipping – Order with Confidence!
Dont Forget your Substrate
-
Not So Simple Mushroom Substrate - Advanced Mix for Superior Growth
Vendor:MycologysimplifiedRegular price From $10.00Regular price -
Simple Mushroom Substrate - Ready-to-Use CVG/CVA Mix for Beginners
Vendor:MycologysimplifiedRegular price From $9.00Regular price -
Masters Mix Substrate - Premium Blend for Gourmet Mushrooms
Vendor:MycologysimplifiedRegular price From $12.99Regular price -
High-Quality Gypsum Powder - Essential for Mushroom Cultivation & Soil Health
Vendor:MycologysimplifiedRegular price From $8.50Regular price -
Medium Monotub Refill Kit
Vendor:MycologysimplifiedRegular price $24.99Regular price
Let customers speak for us
Always love their products
Always love their products
I’m a newbie so take what I say with a grain of salt. I spent a lot of time on the internet reading about the risk/horrors of pre made plates. I’m happy to say that my plates are performing well. I’m overjoyed!
These agar plates are extremely well made snd packeged, the grain spawn and substrate are also very fresh!
Top notch.
Perfect, thank you.
Order was accurate, awesome, and delivered very quckly. Great people with whom yo do business.
Great quality as always. Fast shipping
Both bags look great.
Absolutely fabulous product
. If y'all need great products these are the people who you need to order from
Im experiencing good colonization of grain. Very happy with product and will purchase again.
Good product
Perfect, thank you.
Always on point
