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Sterile Grain Bag with Injection Port — Organic Rye Grain
€13,90
Sale
Sterile Grain Bag with Injection Port — Organic Rye Grain
Lab-sterilized and ready to inoculate.
€13,90
Pre-sterilized under lab conditions - ready to inoculate
0.2 micron filter patch + self-healing injection port
Made fresh in small batches - never shelf stock
Weight of a Bag: 1000g
Package of
100% sterility guaranteed - we replace it or refund you, no questions asked
100% sterility guaranteed
Free EU shipping over 99 EUR
4.8 - 300+ verified reviews
Free replacement if contaminated
Ships from Slovakia - EU delivery 2 to 6 business days
Lab-Grade Sterility
Every bag sterilized and sample-tested. Near-zero contamination risk.
Ready to Inoculate
No prep. No pressure cooker. Inject your culture and grow.
Free Mycology Support
Expert growing advice from our team - always included, always free.
2 to 6 Day EU Delivery
Fast, tracked shipping across Europe. Free above 99 EUR.
Simple process
From bag to harvest in 3 steps.
01
Inoculate
Inject your liquid culture, spores, or agar plug directly through the self-healing injection port. No flow hood or open transfers needed.
Day 102
Colonize and Shake
Keep the bag at 20 to 25°C in a dark spot. When 50% colonized, shake to break up and redistribute the mycelium for faster, even coverage.
Days 7 to 2103
Harvest and Enjoy
Once fully colonized, introduce fresh air and humidity. Pins appear within days. Harvest just before the caps fully open for the best flavour and yield.
Days 21 to 35Ingredients
Only what your mushrooms actually need.
Organic Rye Grain
Certified organic rye berry, hydrated to exact field capacity. Fastest, most even colonization. Never substituted with cheaper grain.
Premium Substrate
Precision-balanced for the right texture, moisture, and pH. Optimized for rapid pinning and multiple productive flushes.
0.2 Micron Filter Patch
Medical-grade gas exchange. CO2 out, fresh air in - blocks all contaminants, no sterile enclosure required.
Self-Healing Injection Port
Silicone port reseals after every injection. Clean inoculation without a flow hood. Designed for multiple access points without contamination risk.
Works best for
Which mushrooms can you grow?
Blue OysterBeginner friendly
Pink OysterBeginner friendly
Golden OysterBeginner friendly
Lion's ManeIntermediate
ChestnutBeginner friendly
King OysterIntermediate
ShiitakeIntermediate
About this product
Sterile Grain Bag with Injection Port — Organic Rye Grain
Grow Mushrooms with Confidence Using Freshrooms Sterile Grain Spawn Bags!
Take the guesswork out of mushroom cultivation with our premium Sterile Grain Spawn Bag. Designed for home growers and mycology enthusiasts, this bag makes it easy to create high-quality mushroom spawn with minimal effort. Each bag contains hydrated, supplemented, and sterilized organic rye grain, providing the perfect conditions for your mushrooms to thrive.
Why You’ll Love It:
✅Built for Success: Features a 0.2-micron filter patch and injection port for sterile, hassle-free inoculation..
✅ Universal Spawn Creation: Suitable for producing spawn for any type of mushroom—simply inoculate with spores or liquid culture and watch your fungi flourish.
✅ Versatile Applications: Ideal for inoculating various substrates like wood chips, logs, and other growing mediums.
✅ Beginner-Friendly: Includes straightforward instructions to guide you through the process, making it perfect for new growers.
This sterile spawn bag is an excellent choice for both beginners and experienced cultivators. Whether you’re growing gourmet mushrooms or experimenting with unique varieties, it’s the ideal foundation for success.
Order your Freshrooms Sterile Grain Spawn Bag today and take the first step toward growing vibrant, healthy mushrooms at home. Perfect for home growers and mycology enthusiasts alike!
Beginner and Expert Friendly
Works for first-time growers and experienced cultivators. No lab, no equipment, no guesswork.
100% Sterile Guarantee
If your bag arrives contaminated, we replace it immediately - no questions, no forms, no waiting.
Certified Organic Ingredients
Precision-balanced substrate from premium organic sources. Never substituted. Always fresh.
Sealed and Batch-Tested
Sealed immediately after sterilization. Every batch is sample-tested before it ships.
Common questions
Everything you need to know.
Yes. Our All-in-One bags are designed specifically for beginners. Everything is pre-sterilized and ready - you only need to inject your liquid culture or spores through the built-in injection port. No pressure cooker, no lab, no mixing required.
A liquid culture syringe, spore syringe, or agar plug to inoculate with. That is it. The bag contains everything else - sterilized grain, substrate, filter, and injection port.
Colonization typically takes 10 to 21 days depending on species and temperature. After full colonization, pins usually appear within 5 to 10 days. Total time from inoculation to first harvest is usually 3 to 5 weeks.
Most growers get 2 to 4 flushes from a single bag. After harvesting, soak the block in cold water for 12 hours to rehydrate, then return it to fruiting conditions.
Store in a cool, dark place away from direct sunlight. Use within 90 days of the production date. Do not freeze.
We replace it completely or refund you - your choice. No forms, no questions, no waiting. Just contact us.
Customer reviews
What growers say.
A
Great
S
Commande est arrivé dans les temps, toute est parfait.
k
The customer service is great and the product quality is fantastic but the shipping took a bit too long
D
Very good ordering again right now
C
Two out of ten were damaged
Hi there,
We're so sorry to hear that two out of ten bags were damaged. We understand how frustrating that must be. We want to make it right and ensure that you have a positive experience with our product. We would be more than happy to replace the damaged bags for you, free of charge. Thanks for letting us know, and we apologize for any inconvenience this may have caused.
Best regards.
Samuel, Freshrooms.
