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๐ Elevate your mushroom game with sterile precision and organic power!
North Sporeโs 3lb Organic Hydrated Sterilized Grain Bag features a USDA certified organic millet and wheat blend, hydrated to an optimal 50% moisture level. Equipped with a self-healing injection port and a 0.2 micron filter patch, it ensures sterile inoculation and gas exchange. Commercially autoclaved for guaranteed sterility, this spawn bag supports fast, contamination-free mycelium colonization and is designed for easy storage without refrigeration.













| Brand | North Spore |
| Global Trade Identification Number | 00869275000289 |
| Item form | Granules |
| Item weight | 3 Pounds |
| Liquid volume | 3 Liters |
| Specific uses for product | Mushroom cultivation |
T**H
piece of mind with this product
seems to be working great. I tried to make my own at home but couldn't get it right. much easier to buy from these guys and know that it will work with no problems. mushrooms colonized great. good value for the money and even the appearance of the bag and shipping box shows care.
T**E
Excellent
The only grain I will buy. Nice and tightly packed with fresh hydrated and sterile millet. I inoculated it with a spore syringe from a reputable supplier. Set the temp to 77, and let it sit in the dark cozy closet. I was careful to minimize possibility of contam. Sprayed the bag all over w alcohol first thing. Applied fire to the syringe. Sprayed the grow room w isopropyl alcohol too. You cant do too much sterilizing. Use sterile gloves if you have them. Mycelium noticeable in a week. Spreads rapidly. After the second week, I had about 2 pounds of pure, fresh fluffy mycelium. Went on to grow the biggest flush ever in a monotub. Happy growing!
C**W
I trust North Spore. Plain and simple.
Haven't had a problem with a bag yet! I've been able to colonize and spawn to bulk with every single one. I will say this, North Spore is a brand i trust. There's plenty of other bigger and cheaper grain bags on here..but I know this works, it's clean, and if there is ever a problem, North Spore will take care of it. Not if you inoculated and nothing grew...im talking about if the grains don't look right, the bag isnt vacuum sealed, or it smells bad. Quality is 10/10. It does its magic thing every single time :)
J**Y
Done with North Spore. The only times I get contamination is when I use their products.
I have inoculated over 50 grain bags/aio bags over the last year. And only 3 times during that time have I got contamination, and they were all North Spore products. 2 times it was their grain, and the 1 other time it was their AIO bag. Iโm 47/47 100% success rate outside of North Spore. And 0/3 with North Spore. This company is way too big and pretty much just a corporation sucking the life out of the mushroom growing industry.
A**M
Trustworthy Bag
Self healing injection port is working solid, no contams 3 weeks post injection- which also points to the fact that they autoclaved this thing well. It's been well over a month since I got it and that means it's probably been a month and a week since it was packed. The price is a steal for the work I avoided, and considering how little output I do it's just easier. North Spore is solid and they've been in the game for years, I wouldn't shave off a couple dollars to get a version that I would even have to worry about mold with. It was good to go out of the box, just unfold it gently and don't get your filter wet. I don't know if it's waterproof, I always assume no. Oh, no big moisture spots or visible dryness either if you're worried about that.
Trustpilot
2 weeks ago
3 weeks ago