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‘Boomr Bag’ Manure Sterile Mushroom Bulk Substrate


















Media | Horse manure mix |
Moisture content | Hydrated to field capacity |
Bag weight | 5 lbs |
⮕ Looking for bulk packs? Click here
Our best-selling Boomr Bag is a sterile bulk mushroom substrate formulated by mycologists to increase the yield of your grow. It features a proprietary blend of composted horse manure, coco coir, and several quality substrate supplements (although we keep the exact blend a secret!) Over several years, it has been perfected for dung-loving mushroom species and is widely-trusted by mushroom growers. Note: Substrate is hydrated to field capacity.
Use Boomr Bag in monotubs, filter bags, and outdoor beds. Or, grow mushrooms from the bag or tray in a humidity-controlled grow room or Martha set up.
Spawn to bulk ratio:
We recommended mixing 1 colonized grain spawn bag with 2-3 Boomr Bags. (Higher inoculation rates may improve your success.)
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- We recommend clean hands, latex or nitrile gloves, and sterile technique when using Boomr Bag to reduce the introduction of contaminants.
- Be sure to mix colonized grain spawn thoroughly into your substrate.
- It is best practice to wait a minimum of 1 week after arrival before using sterile substrates to ensure they were not compromised during transit. Rest assured that your purchase is 100% guaranteed. If your substrate was compromised, we will replace it.
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Boomr Bags should be stored at room temperature out of direct sunlight. No refrigeration is necessary. They can also be stored for several months before use.
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Our Boomr Bags are sterilized in a commercial-grade autoclave. Sterility is verified using biological indicators and temperature sensors.
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North Spore's products shall be used only for lawful purposes. North Spore does not condone Psilocybin (Psilocybe cubensis) or hallucinogenic (magic) mushroom growing in jurisdictions where it is currently illegal.
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Clean
This arrived very clean and not at all contaminated! So I'm happy about that

10/10
This is a great, very solid substrate.

Amazing product
Always super clean and works as advertised. My bag got busted open during shipping and they replaced it for free!

Always Awesome
This stuff is the best.

5 Stars
Top shelf product and customer service

Boomr Bag Sterile Manure-Based Mushroom Bulk Substrate
Quick delivery and a great product

Worked perfectly.
So easy to use. Mycelium loved it and grew beautifully. Definitely using it again.

Boom!
Boomer bags are the best, I've gotten as much as 4 flushes with these, great quality product!

Boomr Bags
Best substrate out there. Always produces.

Awesome...
Love there products make growing my fruits easily