Injected 3 jars with three different spores and mycelium was visible in 5 days. The mycelium is strong and healthy with this food source. Trying to break it up to shake it was a chore but I consider that a good thing. Don't hesitate with using these jars you won't be disappointed.
Even though I use the bulk method and the supplies that go with it, I still use these jars to do grain to grain transfer to the 5 Grain Bags because of convenience it provides to quickly innocculate and colonize the 5 grain bags.
Without fail we are very happy with our fast colonizing grain jars. three weeks and our jars are fully white full of healthy mycelium thank you Midwest 🙏🏽
Like a lot of people on this vendors website I'm still pretty new, and have tried several vendors/methods/mediums looking for what works best. I got a 3 pack of these on a whim because I was close to the free shipping and wanted to try the grain jar to compare to the couple bags of grain I had colonizing already, side note Midwest has always been awesome on response time when I request they ship Fedex to me. Anyway I got sick and these sat in a box for several weeks until I got the motivation to finally get up and put some Liquid Culture into them, I had made my first LC and had no agar so used the jars to see if the LC was contaminated or not. People talk about fast colonization times but I've never seen anything colonize as quickly as these jars have, literally in 24 hours I saw mycelium on the side of the jar about the width/size of the cap of a pen. Blew my mind that it was already going that quick and true to their description of this product it only took about 10 days to get it where it was fully colonized, since I wasn't in a hurry I gave them a bit longer and a small/light second shake. These are also awesome for storage in the fridge, I have put them in there (they froze in the very back too...whoops) for several weeks and then pull them out to warm up before mixing with substrate. I have all my colonization at 78-80 degrees and have the glass as an insulator I think helps these versus grain bags as now they're not directly on the base of my colonization chamber. Also when you look at the pricing of 1-2lb spawn bags from other vendors these are still a great price, and you can't beat peace of mind like so many others on here I have 100% success rate and just ordered another 12...getting four 3 packs gets you $1 on the other side of the free shipping threshold, and for a 25lb box you can't argue about that as shipping alone must be $10 or $15 from fedex and they always oblige when I reach out after placing my order and request they use them vs. USPS because the postal service sucks in my area. Anyway I know I wrote a novel here but hopefully this helps out somebody who is on the fence about using this especially for their first couple grows these will undoubtedly increase your success rate and give you the confidence to keep learning and growing. Last thing if you are new and haven't tried LC yet and still using just MS syringes (I was too) at the very least order one of the Liquid Culture kits and make yourself a jar of LC, it will cut your colonization times in half!
Cleaning effective