3-Pack Original Rye Grain Jars (32oz)
3-Pack Original Rye Grain Jars (32oz) is backordered and will ship as soon as it is back in stock.
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3-Pack Original Rye Grain Jars (32oz)
Description
Description
3-Pack Original Rye Grain Spawn Jars (32oz Wide Mouth)
Sterile Rye Berry Mushroom Spawn Jars for Easy Inoculation, Reliable Colonization & Bulk Growing
Start your grow with one of the most trusted grain spawn options in mushroom cultivation. The Midwest Grow Kits 3-Pack Original Rye Grain Spawn Jars includes three 32oz wide mouth sterilized rye berry jars prepared for clean inoculation, dependable colonization, and easy expansion into bulk substrate, monotubs, grow bags, or additional grain spawn.
Each jar is filled with properly hydrated premium rye grain, a classic choice for mushroom spawn thanks to its moisture retention, nutrient profile, and grain size. Rye berry spawn jars are widely used by growers who want a reliable, easy-to-work-with substrate for spores or liquid culture.
Why growers like rye grain jars: Rye berries offer an excellent balance of moisture, nutrition, and grain structure, making them a dependable choice for clean colonization, shake recovery, and expansion into larger bulk growing projects.
Why Choose Our Rye Grain Spawn Jars?
- Reliable Colonization – Premium rye grain offers a proven environment for healthy mycelium growth.
- Clean & Easy Inoculation – Self-healing injection ports make spores and liquid culture simple to use.
- Dependable Gas Exchange – Each lid includes a 0.22 micron filter patch for airflow while helping resist contamination.
- Sterile & Ready to Use – Professionally prepared and sterilized for immediate inoculation.
- Great for Bulk Growing – Excellent for spawning to casing mix, bulk substrate, monotubs, and grow bags.
- Beginner Friendly – A simple and dependable way to begin with grain spawn jars.
What’s Included
- Three (3) 32oz Wide Mouth Glass Rye Grain Spawn Jars
- Premium Hydrated Rye Grain
- 0.22 Micron Filter Patch for gas exchange
- Self-Healing Injection Port for clean inoculation
- Professionally Sterilized Grain Spawn Jars ready for spores or liquid culture
Product Specifications
| Component | Details |
|---|---|
| Jar Size | 32oz Wide Mouth Glass Jars |
| Pack Size | 3 Jars Per Pack |
| Grain Type | Premium hydrated rye berries |
| Filter Type | 0.22 micron filter patch |
| Injection Port | Self-healing port for spores or liquid culture |
| Preparation | Professionally hydrated and sterilized |
| Recommended Inoculation | 3–4cc per jar |
| Use Case | Spawn production, monotubs, grow bags, grain expansion, bulk substrate cultivation |
Recommended Usage Chart
Use this quick chart as a general guide when planning your bulk grow.
| Application | Recommended Amount | Notes |
|---|---|---|
| Spore Syringe per Jar | 3–4cc | Inject through the self-healing port for clean inoculation |
| Liquid Culture per Jar | 3–4cc | Works well for faster colonization when using clean culture |
| Bulk Substrate Ratio | 2 jars per 5 lbs of casing mix | Recommended for monotub and bulk substrate grows |
| Best Use Case | Monotubs, grow bags, trays, bulk grows | Excellent for expanding colonized grain into larger fruiting setups |
Why Rye Grain Still Matters
Rye berries remain one of the most popular grain spawn choices for a reason. Their size, texture, and moisture-holding ability make them easy to inoculate, easy to shake, and dependable for strong mycelium colonization. For growers who prefer a classic grain spawn format, rye jars continue to be a proven option.
These jars are especially useful for growers moving into bulk substrate cultivation, monotub growing, and spawn expansion, where clean and vigorous grain spawn can make the rest of the process easier and more consistent.
From Jar to Bulk Monotub Grow
The video below shows the process of inoculating a grain jar, allowing it to colonize, breaking it up, and mixing it with substrate for a bulk monotub grow.
Premium Rye Grain Spawn Jars for Mushroom Cultivation
The Midwest Grow Kits 3-Pack Original Rye Grain Spawn Jars gives growers a sterile, ready-to-use rye berry spawn option designed for dependable colonization and easy expansion into bulk substrate. Whether you are inoculating with spores or liquid culture, these jars provide a clean and reliable starting point for mushroom cultivation projects of all sizes.
Let customers speak for us
I order everything here first so needless to say… but well deserved…
This company hands down is for mycology and the people!! I bet you bottom dollar I’ll order something or rather from Midwest within the week or 2🤑
WORKS WELL IM IMPRESSED THANK YOU MIDWEST YOIR THE BEST !!!!!☝️
Works great 👍
If contamination is a concern for you, this FFU is definitely worth the investment. With the Bonsai Laser Particulate/Contaminate Meter PM 2.5, I consistently got all 0's up to 5 feet away (only tested up to 5 feet), as long as I stayed within the 23" × 23" area in front of the filter. Outside that zone, particle counts are still very low.
Every thing went well !!! Beautiful mushrooms!!!!
Wet and taking off like a jet 🥷
Thank you MWG 🙌
This kit contains everything you need to start growing your own mushrooms (except the genetics of course).
I inoculated the grain with Gorilla Wizard LC on 3/1 then did a break n’ shake on 3/12.
11 days later on 3/23 I transferred the grain spawn to bulk substrate in the monotub (I added a casing layer on top).
It’s been about a week now and it’s showing nice recolonization :)
I’m very pleased with this kit. The 44q container is fantastic! It has a tall lid so your mushrooms are able to grow and stretch :) I’ve tried other monotubs (like the inflatable one - the concept was great the practicality of it wasn’t quite up to par),
So far everything about this company has been great, I haven’t had any contamination or anything. I will update in a couple weeks the outcome of my Gorilla Wizard grow :)
SIMPLY THE BEST,BETTERMENT THAN ALL THE REST THANK YOU MIDWEST YOU ROCK !!!!!!!!!!😎😎😎😎😎😎😎
I love this company and I’ve had 100% success rate with their products!!!!
These silicone lid covers are a game changer. When I prep grains, water always finds a way under the foil and onto my lids no matter how tight I get the foil. These lids go on quickly and keep my jar lids nice and dry! This is big for anyone using paper filter patches for gas exchange. Thank you Midwest for having exactly what I needed!
I know these are probably designed for all-in-one setups, but recently I've come to find spawning 2 bulk in these types of bags incredibly effective. Instead of mixing a grain bag (2-2.26 lbs) into 5 lbs of substrate in a pan, I like to make two nice big round babies with the same amount. For measure, these bags could easily hold 10 lbs of materials, and the real reason I got them was due to the concern that the tops of the smaller ones would not so easily receive pouring from other large bags. Plus, the sale price and potential for extra filtered air flow sold me solid. That said, the downfall of such a large bag was sealing them was much more difficult. I should have ordered MGK's expert bag-sealing device instead of the inoperable hank of jank I wound up having to return. Nevertheless, tape sufficed.
I almost bought the regular Complete 44Q Kit and saw this and decided to splurge. All I can say is it was well worth it. Everything colonized and re-colonized much faster. I used to use a space heater in my grow room and that added a chunk of cash to my electric bill. This setup is awesome. I am only 9 days after breaking up my spawn bag and mixing with substrate and I am seeing pins everywhere! My only suggestion is to add 3 filter disks on the opposite side of the air pump. This helped me dial it in in my room which is already kinda humid here in Georgia.
No bacteria no broken jars solid 10/10 perfect condition. Will be Buying more!❤️
I love y'all's mono tubs they work great I would like to have a top for one of them it's about 6 in taller just so I can get this one strand of mushroom that grows a foot tall but I'm going to work out something with that different with the whole group that I think.
I've already recommended your products to friends and family.
Everything I ordered from y'all has come quickly and package good.
