3-Pack Premium Quick-Colonizing 5-grain Jar (32oz) – Midwest Grow Kits

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

(183)
$1899 $2399
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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 Jars (32oz Wide Mouth)

Faster Colonization. Cleaner Inoculation. Bigger Results.

Unlock superior results with Midwest’s premium 5-grain spawn jars—meticulously formulated for rapid colonization and ideal for any bulk or monotub setup. Each 32oz wide mouth jar contains 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 183 reviews
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(174)
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S
Smith.R
Always perform as expected

Great Jars

S
SpiderVenom
It's all Good

Everything was in good shape, on time, and the products were as described. I have used Midwest Grow numerous times over the last several years and have always been satisfied with my orders and their products.

A
Andy
Jars

I received them very quickly packaged very well The jars colonized Very quickly as advertised Usually I bought the regular jars but for the extra few bucks these are worth it

J
Jason Deal
WOW that's fast

Only took 2 days to see mycelium growth in these jars with LC!!!! I only do business with Midwest now because I have never had any contamination through several orders! Thanks Midwest.

J
Jumpspore
5 grain spawn jars

The five grain spawn jars are the best they colonize their rapidly and I have had the greatest of success in my mushroom cultivation and these five grain spawn jars have been the key to getting things going beautifully