The Original Rye Spawn Bags
The Original Rye Spawn Bags is backordered and will ship as soon as it is back in stock.
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The Original Rye Spawn Bags
Description
Description
The Original Rye Spawn Bags (2-Pack)
Classic Performance. Superior Nutrition.
Trusted since the 1970s, our Original Rye Spawn Bags are the gold standard for serious cultivators. Each bag is packed with over 2 quarts of nutrient-enhanced organic rye berries—hydrated to perfection, pH-balanced, and fortified with essential minerals for vigorous colonization and multiple flushes. Rye grain’s naturally high nitrogen content outperforms millet-based alternatives, offering extended life and better 2nd and 3rd flushes.
What’s Included:
- 2 Original Rye Spawn Bags (2.25–2.5 lbs each)
- Cereal-grade rye berries, mineral water, gypsum, and nutrient-enhancing herbs
- Self-healing high-temp injection ports for easy, sterile inoculation
- 3mm Polypropylene bags with 0.22 micron filter patches for gas exchange
- Step-by-step photo guide + how-to videos
Why Choose Our Rye Spawn Bags?
-
High Nitrogen for Long-Term Performance
Rye supports stronger colonization and longer fruiting cycles compared to millet. -
Super-Hydrated & Sterilized for Purity
We use a custom hydration and air-drying method followed by industrial autoclave sterilization at 20–22 PSI for 180 minutes to ensure every bag arrives 100% contamination-free. -
Mass Production Ready
These are some of the largest spawn bags available—perfect for large yields or bulk substrate use. -
Reliable Inoculation Setup
Each bag features a built-in filter patch and high-mounted injection port for seamless, contamination-resistant use.
Pro Tip:
Inject 3–5 cc of your favorite grain or dung-loving spores directly into the injection port, then incubate alongside your jars. For advanced growers, we include an additional step-by-step guide for bulk spawn methods.
Let customers speak for us
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!
Perfect agar! Great job on agar quality, plate seal, and overall packaging. Many other vendors don’t seal and package well and the agar can start to lose volume and arrive in bad shape. These are my new favorite.
Great customer service, all products are sterilized ,I've been having great results with no contamination
Love the products.. so far everything has panned out perfectly. Keep up the great work
I love how well packaged your products are.
I'm always guaranteed a vibe in my fruits.🍄🍄
Quality product. I hope to order more as my business grows.
This is exactly what I was looking for. Good structure… a winner! And thank you for the extra freebies my last order.
Grain bags are great I wasn't happy with the agar plates because they weren't wrapped individually and you didn't send any para film I feel like you guys should replace the five agar plates that I got when I undid the main rapper the lids got Jarred around and they ended up contaminated all of them but one the one I called a mushroom with so out of the five I only was able to use one of them but other than that your business has been great I love every product of everybody I bought a grow kit from you guys a few years back but overall very happy with Midwest grow kits
I got the 45 dollar all in one bag with monotub and their tubs are the best, their all in one bags are the best and cheapest, amd their substrate is the best with more mushroom growing ingredients than the competition..
I am going to buy the jars next so I can reuse for liquid culture,bag of substrate and 2 monotubs bc their tubs work wonders compare to modified bins. Simply the best in the business.
On time, neatly packaged simple set up and everything was in working condition 👌
What a great cup to start the day off!
So far this culture has been great! I used my own spawn bag and so far, the mushrooms have been growing like a charm! Right now the mushrooms are still cultivating, but so far there seems to be no contamination, and everything is growing as it should!
So far, my second spawn bag is doing really well since first one ended up developing some slimy yellow when it was almost fully colonized, but contamination is expected hazard.
But the bags look great, the prices are fair, and I'll be ordering again soon.
Love the products.. so far everything has panned out perfectly. Keep up the great work
About to put in another order.
They?re colonizing beautifully
I have used your products before, although after uncountable attempts I have been denied reward, but your product arrived in short time, was packaged in complete sterility, and met what you promised. I will continue to use you for all my agriculture attempts. Dr.Hicks Kowpuk
