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- ‘Boomr Bag’ Manure-Based Sterile Mushroom Substrate
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‘Boomr Bag’ Manure-Based Sterile Mushroom Substrate
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| Species | Dung-loving mushrooms |
| Moisture content | Hydrated to field capacity |
| Bag weight | 5 lbs |
Maximize your mushroom yield!
Our best-selling Boomr Bag is a sterile manure-based bulk mushroom substrate formulated by mycologists to increase the yield of your grow. Over several years, the recipe 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 in a tray using a humidity-controlled grow room or Martha set up.
Features & benefits:
- Made entirely from organic materials
- Balanced pH with a complex nutrient profile
- Proven vigorous mycelial growth
- Fast colonization and higher yields
- Increased aeration and moisture retention
- Hydrated to field capacity
Boomr Bag is made from a blend of quality local, organic, and non-GMO materials including a proprietary blend of composted horse manure, coco coir, and several quality substrate supplements (although we keep the exact blend a secret!) Unlike other substrates that contain harmful additives, you can rest assured that your grow will be natural and chemical free.
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 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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Customer Reviews
5.0 Based on 512 Reviews
5 ★
97%
499
4 ★
2%
12
3 ★
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BK
01/26/2025
Brian K.
United StatesGreat product!
I’ve had the best luck with North Spore product over others I’ve tried.
Single box (5 lbs)
01/26/2025
North Spore
We're so glad everything is working out for you, Brian! Thanks for the great review.
DB
01/02/2025
Dez B.
United StatesBoomrbag
Arrived fast, I had no issues but in the past if I did have an issue its resolved fast. This is the only site I use.
8-pack box (40 lbs)
01/03/2025
North Spore
We so appreciate your great review, Dez. We are here if you ever need anything!
ZC
12/26/2024
Zachary C.
United StatesI recommend this product
Best you'll find.
I've been going to them for 8 years and never had a bad bag. And I'd they missed one they return immediately. Got 3 left of my 8 i bought.
12/27/2024
North Spore
Thank you so much for the continued support, Zachary! We are here if you ever need anything!
JC
12/16/2024
john c.
United StatesI recommend this product
excellent product
easy to use and great video tutorials
Single box (5 lbs)
12/19/2024
North Spore
Thanks, John! If you need help with anything, please reach out.
AS
12/10/2024
Andrew S.
United StatesI recommend this product
Best Subtrate
I have been using this sub for over a year now, and hands down the best I have ever used. The quality is above and beyond.
Single box (5 lbs)
12/11/2024
North Spore
We appreciate the review, Andrew! We're glad the substrate is performing well.
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