Black Cow Manure Bulk Substrate is with out a doubt the best medium that I have used for my growing. Mycelium growth in less than one week from planting. Fantastic yield. 100% recommended for your bulk growing.

I recently ordered this product for a second time. I was really impressed with the results of using this casing mix first time around. And as always received my order quickly and packed nicely. I would definitely recommend this product for anyone wanting to boost their grow!

I mixed the mycelium from the Premium Quick-Colonizing 5 grain jars with the Black Cow Casing mix. In two days I started to see white mycelium growing on top. The entire top of the casing mix was white in 7 days! This stuff is amazing! It's now been 15 days and I am starting to get many pins and several mushrooms growing. This casing mix is the best on the market. I will buy nothing else in the future.

I normally purchase the horse manure substrate from Midwest grow. I've had very good results with it. This grow, I decided to give the black cow a try. This was for mycology project, and wanted to see if there were any unique or notable differences.

I will say the product arrived 100% perfect condition

Moisture content was feild quality ,not overly moist, but certainly plenty of moisture content. So far, I'm seeing very fast colonization, edge to edge coverage... so in the early stages, it's looking promising. I have had other grows end up getting contamination, which we all know is disappointing. But so far the Black cow sub is performing very well. It's tough to tell early on, once pinning starts, that's generally when I'll know how the substrate is doing. All in all Midwest Grow products are really great. Fast shipping, properly packed and quality every time. They truly are my go to company for all things for growing various Mushrooms. Not to mention, it saves so much time and effort to making your own CVG, I can't imagine why anyone would want to do all that work... try some today, you will see, it's worth the cost, great results, and is very consistently great stuff..

I normally purchase the horse manure substrate from Midwest grow. I've had very good results with it. This grow, I decided to give the black cow a try. This was for mycology project, and wanted to see if there were any unique or notable differences.

I will say the product arrived 100% perfect condition

Moisture content was feild quality ,not overly moist, but certainly plenty of moisture content. So far, I'm seeing very fast colonization, edge to edge coverage... so in the early stages, it's looking promising. I have had other grows end up getting contamination, which we all know is disappointing. But so far the Black cow sub is performing very well. It's tough to tell early on, once pinning starts, that's generally when I'll know how the substrate is doing. All in all Midwest Grow products are really great. Fast shipping, properly packed and quality every time. They truly are my go to company for all things for growing various Mushrooms. Not to mention, it saves so much time and effort to making your own CVG, I can't imagine why anyone would want to do all that work... try some today, you will see, it's worth the cost, great results, and is very consistently great stuff..