32 Ounce 5 Grain Blend Spawn Jars | Midwest Grow Kits

Free shipping on orders over $99

Phone Support (M-F) 11am to 5pm CST

Save 25% or More! Check out our Fall Sale! Click Here to View!

3-Pack Premium Quick-Colonizing 5-grain Jar (32oz)

(196)
$2299 $2499
Taxes, discounts and shipping calculated at checkout.
Speed up colonization with our 3-pack of 32oz premium 5-grain jars. Sterilized, nutrient-rich, and ready for inoculation. Includes filter disks and injection ports.


Description

3-Pack Premium Quick-Colonizing 5-Grain Spawn Jars (32oz Wide Mouth)

Faster Colonization. Cleaner Inoculation. Bigger Results.

Unlock superior results with Midwest’s premium 5-grain blend spawn jars—meticulously formulated for rapid colonization and ideal for any bulk or monotub setup. Each 32 ounce wide mouth jars contain a powerhouse blend of rye berries, white & red milo, and white & red millet, fortified with gypsum and calcium phosphate to maximize spore germination and promote strong mycelial growth.

Whether you're just starting out or scaling up, this 3-pack is built for speed, reliability, and cleaner results.


Included in the 3-Pack:

  •     Three (3) 32oz Wide Mouth Glass Jars
  •     Filled with a 5-grain mix of:
    •     Rye berries
    •     White milo
    •     Red milo
    •     White millet
    •     Red millet
  •     Enriched with gypsum & calcium phosphate
  •     Sterilized at 15 psi for 120 minutes – contaminant-free and shelf-ready
  •     0.22 Micron filter disk for optimal gas exchange
  •     Self-healing injection port for clean, easy inoculations

Why Choose Our 5-Grain Jars?

  •     Rapid Colonization: Small grains create more inoculation points for faster, even growth
  •     Lab-Grade Sterility: Each jar is pressure sterilized for maximum cleanliness
  •     Ready to Use: Just inject 3–4cc of spores or liquid culture per jar
  •     Perfect for Bulk Grows: Pair with casing mix for high-yield monotub setups
  •     Proven Results: Trusted by beginner and experienced mycologists alike

For bulk substrate grows, we recommend 2 jars per 5 lbs of casing mix.

Skip the slow start—upgrade your research with our quick-colonizing 5-grain jars and get ahead on your next microscopy project or culture expansion.

Customer Reviews

Based on 196 reviews
95%
(186)
5%
(9)
1%
(1)
0%
(0)
0%
(0)
S
Scott Jackson
Rating

Way faster than any bag

S
Snkdok
Value and function

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!

J
Joe
Always quality!!

Typically grows faster than expected

E
Eric Garris
Excellent

Have had 100% fast growth

B
Brandon Fisher
In process

I inoculated all 3 jars about 2 weeks ago. All 3 seem to be moving along without signs of issue.