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‘Boomr Bag’ Manure-Based Sterile Mushroom Bulk Substrate
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.
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.
Note: Boomr Bag 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 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.
- Reviews
- Questions
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Great substrate!
This substrate works great and grows great fungi!
North Spore
Thanks, Johnathan! We're so glad everything is working out.
On point
Luv these, always clean and field capacity, perfecto!
North Spore
We're so happy you're loving them, Daniel! Thanks for the great review.
Great!!!!
NorthSpore has the best product hands down!!! Nutrient rich substrate. They are good at responding and taking care of you if you have a problem. I love them!!!
North Spore
We love having you as a customer, Dantell! We'll be here in case anything comes up.
Best Substrate!
This is the best substrate I've ever used. The mycelium colonized much quicker than it has with the homemade substrate i typically use. It also held in moisture better than normal and has given me 3 great flushes. I believe it has something to do with the manure. The substrate I typically use is 75% coconut coir, 10% vermiculite, 10% perlite and 5% gypsum. I mention this for other growers so you know I'm using a decent substrate recipe that's worked well. Having said that, the North Spore manure based substrate is superior to my recipe. I can't say enough good things about North Spore products. Packaged well, quality products, great costumer service and prompt delivery!
North Spore
Thank you so much for taking the time to leave such a detailed review, Jimmie! We appreciate your business and support.
Effective boost
It helps with greater quantity.
North Spore
Thank you for your review, Gordon!
Perfectly hydrated magical mix
this came perfectly hydrated not to dry not to wet. it was my first grow ever and i thought about going cheaper but am glad i didn't. my grow went perfectly for a first timer. thanks to quality ingredients with incredible quality control my depression has subsided immensely.
North Spore
Thanks so much for sharing, Jon! Please reach out if you ever need anything.
Great stuff
I’m gonna be honest, I tried a different brand bc it was cheaper and it ruined my entire grow. This stuff is worth the money. Less headache and you know it’s quality every time. Won’t deviate from it again.
North Spore
We're sorry to hear that you lost a grow, but we're happy to be doing business with you! Thank you for leaving a review.
Awesome
Great sterile substrate...perfect moisture and no contam!
North Spore
Thanks, Kristen! We're so glad you're loving the Boomr Bags.
Awesome
Awesome product! Works perfect! Fast shipping! And so much information from your website. Thanks for being the company that you are keep It up woot woot!!!
North Spore
Your review made our day, Zane! We're here to help if you ever need anything.
Great Product
Bought an 8-pack of Boomrbags and so far so good. I have 2 monotubs using this bulk substrate that are now almost 100% colonized with no signs of contamination. Substrate bags were easy to use, came perfectly hydrated to field capacity, and didn't require any additional moisture added. I highly recommend using this substrate in a monotub or any other bulk substrate setup.
North Spore
We're so glad you're loving the Boomr Bags, David! Thanks for the great review.