Premium 5-Grain Spawn Bags
Premium 5-Grain Spawn Bags is backordered and will ship as soon as it is back in stock.
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Premium 5-Grain Spawn Bags
Description
Description
Premium 5-Grain Spawn Bags (2-Pack)
2.25–2.5 lbs Each | Self-Healing Injection Port | Fast Colonization
Our Premium 5-Grain Mushroom Spawn Grain Bags have remained a customer favorite for over a decade—and for good reason. Designed for speed, consistency, and superior performance, each bag contains our proprietary mix of five grains, fortified water, and a mineral-rich Calcium+ blend to support vigorous growth through multiple flushes.
Whether you’re a beginner or advanced researcher, these bags are ready to deliver exceptional results—sterilized, sealed, and prepared for effortless inoculation.
What’s Included
- 2 x 5-Grain Spawn Bags (2.25–2.5 lbs each, ~2 quarts)
- 10T 3mm Polypropylene Bags with 0.22 micron filter patch
- High-temp self-healing injection port for easy spore or culture application
- Step-by-step photo grow guide + advanced bulk grow instructions
Why Our 5-Grain Mix Works Better
Our custom blend begins with rye berries and is enhanced with Red Sorghum, White Sorghum, Millet, and other grains selected for:
✔️ Maximum surface area – more inoculation points = faster colonization
✔️ Strong nitrogen profile – supports up to 4 flushes
✔️ Non-clumping – grains are soaked, simmered, and dried to perfection
✔️ Fortified hydration – blended RO + mineral water, gypsum, Calcium+, and DAP for balanced pH and nutrient-rich environment
Sterility & Quality Control
Each batch of 600 bags is autoclaved at 18 PSI for 180 minutes, minimizing human error and ensuring total sterility. Bags are guaranteed to arrive clean and ready to go—just inject 3–5cc of your favorite grain or dung-loving spores.
Performance Highlights
- 10+ years of proven results
- Massive flushes with excellent size and density
- Compatible with all mushroom strains
- Trusted by beginners and bulk growers alike
Let customers speak for us
Excited about the growing excitement. Waiting for part 2
New to Research, heard complaints of other Company's all-in-one bags getting Contaminated, many recommended Midwest. I know my process wasn't perfect and your bag made it to fruiting. Maxing out Strain size and shape, matching strain descripton and color. Ordered 5 more bags and 2 heating mats.
Ive ordered upwards of 50 bags of this substrate and only had 1 issue so its safe to say this is a quality product every bag has usherd in a succesful flush of my favorit strains so buy it
I’ve used several heating/seedling mats over the years and this beats them all. Great temperature adjustability. Like most heating mats a dish cloth between the mat and tub helps. A heavier full tub will run a little hotter than an empty/light tub. A great investment…especially if you live in colder climates
I love these for the value ! You cannot go wrong with these 32oz ready to use 5-grain jars. I’d make them myself but there’s a few ingredients, time for pasteurization and then equipment . Again ! VALUE! It’s here! Love em!
It's doing very well as is my spawn bag that inoculated a few days before them I'm excited to see how it all turns out.
Thank you all for making good products I'll recommend on the other folks.
I have 6 1/2 pint jars and all of them came unsterile ik there unsterile because I have a uvc light and a pressure cooker and they still came out contaminated my syringes I got are plyable too and still my stuff was contaminated I need another couple of jars
Premium product
Get a good whiff when you open
I started this project back in July and started seeing promising pins around the end of August. I’m very new to the whole procedure, but super content with the product outcome. Still cropping caps 4.5 weeks after the first harvest. Thanks for all the educational support, it’s well organized on the “learn” dropdown.
I can't pass up a new way to get more mushies in my diet. I didnt really have any expectations on this as I am not a fan of Ryze and some other instant mushroom coffees but this really blew me away! I brewed some this morning and the flavor of this specific roast is very very good. I literally cannot taste a hint of the mushrooms! From my guess looking at the beans the mushrooms are freeze dried and super fine. Now I just need K-Cups and larger bags! I will be adding this to my future orders!
Thank you for selling me the most awesome mushroom growing Kit! Easy to assemble- awesome setvup!
Got the bags last week and injected them. Already seeing growth. Thanks.
giving a five because Midwestgrowkits.com is so good to me, but these were misdelivered in the mail. Luckily the neighbors brought the items back, but had a few cold nights. Im hoping there all good, starting new projects before winter is here. All year Midwestgrowkits.com made my needs were met. Can't wait till next year and spring heat returns. Thanks to everyone there, recommend 👍 💯
These are really cool! Long term storage of your favorite genetics without having to keep doing dish transfers. Midwest Grow Kits just has the best quality of everything!
