Sterile Grain 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.

Have ordered plenty of the sterile grain bags from North Spore, the bags are always sterile, the bag itself is really a high quality bag, and personally my special spores (IYKYK) have continued to take very well to these. Also the coupon to ITW was super helpful, if you’re looking for good spores ITW and North Spore is an absolutely UNBEATABLE cost-benefit! The fungi loves it, and that is a TRIP…

This sterilized, hydrated grain spawn bag worked perfectly for my lion’s mane mushroom grow! It arrived well-sealed, clean, and fully hydrated—ready to inoculate right out of the box. Colonization was fast and even, and I got a great yield. Super convenient and reliable for home cultivation. Highly recommend for any mushroom grower!

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 :)

Junk! These bags have holes in them that cause massive contamination. Really disappointing. And, yes, I was careful. The holes in the bag were not apparent until weeks later. This is a defect not user error. Do not buy!

Completely new cultivator here, didn't really know any better until I bought a different brand of bag. The bags I bought (3) were dry as a bone compared to the ones I just opened. It is winter, cold and dry where I'm at right now so I don't want to leave a one star. Very well packaged, pretty looking bags, didn't see or feel any holes and no visible soaking of the grain when they were cleaned with alcohol so I assumed it was all good. The bags I got have grain that is damp with moisture. Might be too much, I don't know, but with how these ones were very dry and loose makes me think they were too dry. Two weeks with not a speck of mycelium here. Maybe in the summer I'll try them again, I do think most of the problem is the dry conditions here, but again competition was packaged in such a way that the moisture was retained so I'm inclined to believe it could be applied here too. Edit!: Hey! Not too proud to admit when I was wrong. After modifying my setup a bit, im starting to see growth! Evidently I don't know what the hell im talking about. Cheers, and sorry about being an idiot!

I found the moisture content to be good, the mycelium seems very happy so far, and I waited a couple weeks before inoculating to ensure they came sterile. The product received 4 stars instead of 5 only because one of my eight bags came contaminated and has an interesting fungus growing in it thus preventing me from safely inoculating that bag. 7/8 is pretty good though! And I’ll get myself a pressure cooker and an autoclave one day when I can afford upgrading my equipment for at-home sterilization. All in all I was very pleased with my first grow! *I did not contact north spore regarding the one contaminated bag. Maybe they would replace it, but there’s no solid promise in the product description of replacement, so I chose to take on the loss. 🤷‍♂️*

I recently tried the North Spore 3lb bag of sterilized grain, and it has been a great addition to my mushroom cultivation setup. The grain arrived in perfect condition, well-packaged, and ready to use right out of the bag. The sterilization was spot-on—no contaminants, which is crucial for a successful grow. The quality of the grain itself is impressive; it's consistent and works well with my mushroom spore syringes. Overall, this product offers excellent value for the price and performs as advertised. Highly recommend it for anyone serious about growing mushrooms at home.