Midwest's Black Cow Manure Substrate & Casing Mix - 5 lbs – Midwest Grow Kits

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Midwest's Black Cow Manure Substrate & Casing Mix - 5 lbs

(44)
$2000
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Fully hydrated 5 lb Black Cow Manure Casing Mix made from composted grain-fed cow manure, coir, and minerals. Ideal for bulk mushroom grows and Monotub setups.


Description

Midwest’s Black Cow Manure Substrate & Casing Mix – 5 lbs

Ultra-Composted, Fully Hydrated, and Microbe-Rich for Exceptional Bulk Grows

Supercharge your bulk mushroom projects with Midwest’s Black Cow Manure Substrate Mix, a premium blend of ultra-composted, grain-fed dairy cow manure and carefully balanced additives. This 5-pound fully hydrated casing is loaded with beneficial microbes that speed colonization and help defend against common molds—making it an ideal choice for dung or grain-loving species.

Formulated for Speed and Success:
Our composting process is precision-monitored and heat-optimized (up to 155°F), ensuring nutrient-rich, microbe-dense manure. We then blend it with high-quality Coco Coir, vermiculite, spring water, gypsum, hydrated lime, and a proprietary mineral buffer to create optimal texture and pH for rapid, robust colonization.

What’s Inside:

  •     Grass Fed dairy cow manure (ultra-composted)
  •     Coir (Coco Coir brand)
  •     Vermiculite
  •     Spring water
  •     pH stabilizers: Gypsum, hydrated lime
  •     Special mineral blend (Calcium, Magnesium, Sodium Bicarbonate)

Product Features:

  •     Fully hydrated and vacuum-sealed for convenience
  •     Designed for use with fully colonized spawn bags or jars
  •     Ideal for Monotub and bulk casing techniques
  •     Shelf life: Up to 45 days at room temp (do not freeze)

Recommended Usage:

  •     1 to 1.5 spawn bags per 5 lb casing bag (5-grain or rye)
  •     3 quick-colonizing 24 oz jars per 5 lb bag
  •     6 half-pint substrate jars per 5 lb bag

This may be our most potent mix yet—perfect for mycologists looking to maximize yields in a natural and reliable way.

Customer Reviews

Based on 44 reviews
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C
Charles Kemper
Awesome product.

As ALWAYS, this product was shipped quickly, arrived in great condition, and is superior from all others as far as price, and quality. Always number one in my book. Will definitely buy again

T
Tom
Best Substrate and Casing Mix

I have been buying form Midwest for over 10 years. This is the only place I shop. Very good stuff.

J
JahBird_Fly
Good product

Good product. Maybe a bit too composted… be nice if it had more structure of a decomposing cow patty.

E
EdwardDS
Perfect substrate

Really good stuff, noticable difference and I found mixing the regular Select bulk substrate with this works just as well! My new "Go to" recipe is 50/50 Black cow and select bulk casing, I always use the regular casing for the top half inch. No contam and I still get the potency increase.

J
Jeff Radadabaugh
Great Product

Mycelium grow well in this casing material. I will buy more of this casing product.