The Original Rye Spawn Bags – Midwest Grow Kits

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The Original Rye Spawn Bags

(299)
$2000
Taxes, discounts and shipping calculated at checkout.
2-pack of nutrient-rich original rye spawn bags (2.25–2.5 lbs each) with injection ports and filter patches. Perfect for grain and dung-loving species. 100% sterile and ready to use.


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.

Customer Reviews

Based on 299 reviews
93%
(277)
5%
(14)
1%
(4)
1%
(2)
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(2)
Z
ZoiksScoob
So far, so good!

About to put in another order.

M
Myconaut
Works perfectly for my needs

They?re colonizing beautifully

h
hicks
Review

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

K
Kerrilynn
Always happy

Consistent quality and customer service

M
Michael Pogue
Fast and Easy

Shipped quick and my spores began to colonize immediately! I'll definitely be a returning customer