8-Pack ‘Boomr Bag’ Manure-Based Sterile Mushroom Substrate
Media | Horse manure mix |
Moisture content | Hydrated to field capacity |
Carton size | 8 bags (40 lbs) |
Bag weight | 5 lbs each |
A $224 value!
Our best-selling Boomr Bag is a sterile bulk mushroom substrate formulated by mycologists to maximize your mushroom yield. 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.
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.)
Looking for single bags? Click here.
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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 promotes the use of its products for lawful purposes only. North Spore does not encourage the procurement, use or growing of any illegal substance. North Spore does not condone, encourage, facilitate, solicit, or promote any illegal activity. Certain substances are illegal under state and federal laws, and it is the consumer’s responsibility to be informed about the legal status of any substance the consumer grows, procures, or uses.
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Great Service
Fantastic product and if any issues arise with shipping the customer service resolved promptly! Great product and service!
North Spore
We really appreciate the kind review, Mark! Our team is here to help if you ever need anything.
Great!
Haven't used them yet but still nice and contamination free!
North Spore
Thanks for sharing, Matthew! If you need help with anything, please reach out.
Great deal
Always love a good value
North Spore
Thanks, Tim! We really appreciate your support.
Great deal
If your planing on having more than one tub, this is the way to go.
North Spore
We really appreciate your support, Tim! Please reach out if you ever need anything.
A+
I’ve bought multiple substrate bag and these are by far the ones I’ve the best yields with. Haven’t had a problem with contamination and always shipped in a timely manner. Definitely my go to from now on.
North Spore
Thanks for the great review, Josh! Our team is here if you need anything!
Best company
Should arrive Saturday can’t wait to spawn to bulk
North Spore
Thanks, Charles! Our team is here if you need anything!
Just purchased
Just ordered can’t wait to get growing free 250 reward points also nice
North Spore
Thanks, Charles! Our team is here if you need anything!
Always on point
Quality. Dependable. Highly recommend. Thanks NS!
North Spore
Thanks, Zack! If you need help with anything, please reach out.
Great product, amazing results.
High quality substrate with zero contamination. I'm getting amazing yields using North Spore.
North Spore
Thanks for sharing, Nilsson! If you need help with anything, please reach out.
Best Bang for Buck
Only the best of the best!
North Spore
We really appreciate your support, Beverly! Thanks for the great review.