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Max Yield Bins Boomr Bag Monotub Kit




















Dimensions | 22”(W) x 15”(D) x 11”(H) |
A $192 value + free shipping!*
Start growing your own dung-loving edible or medicinal mushrooms indoors!
Our beginner-friendly Max Yield Bins 'Boomr Bag' Monotub Mushroom Grow Kit makes mushroom growing easy. Created by mycologists, this starter kit is equipped with everything you need to grow dung-loving species at home.
The manure-based sterile substrates, injection port bag, and coco coir provide mediums for colonization, incubation, and growth. We've also included self-adhesive filters and black micropore tape that fit over holes on the monotub lid and base. These are designed to keep out foreign spores and other contaminants while maintaining proper humidity, airflow, and gas exchange.
Each kit includes:
- (1) Max Yield Bins monotub
- (3) Boomr Bag Sterile Manure Substrate (5 lbs each)
- (1) Organic Sterilized Grain Bag with Injection Port (3 lbs)
- (1) Coco Coir casing layer (2 lbs)
- (2) Sheets of 2” self-adhesive filters (12 pack)
- (1) Roll of 1/2" black micropore tape (10 yards)
Spawn to bulk ratio:
We recommended mixing 1 colonized grain spawn bag with 2-3 Wood Lovr bags. (Higher inoculation rates may improve your success.)
IMPORTANT:
Coco coir should only be added once monotub is fully colonized and pins begin to form. Only a thin layer of coco coir (approx. 1/2 inch) is necessary.
Optional accessories:
For more detailed information on items included in the kit, click the links below.
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Features:
- Equipped to control airflow circulation and humidity retention
- Durable, with tight-fitting latches to keep the lid sealed to the base
- Fit with a custom light-blocking base to prevent mushrooms from growing on the sides or bottom of your bin
- Compact with an assembled size of 22.5"(L) 15.5”(W) 12”(H)
- Made in Canada
Cleaning instructions:
We recommend cleaning your monotub between each use to keep all surfaces as sterile as possible. Wipe down all surfaces to remove dirt and spores with a soft cloth soaked in warm water. Sanitize by spraying with a 70% isopropyl alcohol solution inside and out. DO NOT use bleach or abrasives.
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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.
Each bag weighs 5 pounds. (Note: Bags are 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.)
Best practices:
- We recommend clean hands, latex or nitrile gloves, and sterile technique when using Wood Lovr 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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Our sterile grain bag with injection port was formulated by mycologists to maximize the speed and size of your mushroom grow. Each spawn bag contains 3 lbs of our proprietary blend featuring hydrated, nutrient-rich organic millet and wheat berries. Bags also include a self-healing injection port for use with a spore or culture syringe plus a 0.2 micron filter patch to block airborne contaminants while providing even gas exchange. Bag weighs 3 pounds. (Note: Bags are hydrated to field capacity.)
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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IMPORTANT: Coco coir should only be added once monotub is fully colonized and pins begin to form. Only a thin layer of coco coir (1/4 to 1/2 inch) is necessary.
Coco coir provides many benefits to the mushroom cultivation process. In addition to moisture retention, the porous structure of coir material enables good exchange of air and water and is highly resistant to contaminants making it ideal for mushroom growing. It is often used as casing, added to substrates, and is even used in garden beds as an alternative to peat moss.
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These self-adhesive filters are made from 100% recycled filter material and sized to fit over 2" and 1" holes on the monotub. Use these in place of polyfill to keep out foreign spores and other contaminants while maintaining humidity and air exchange. The black micropore tape is used to cover the small holes on the base of the monotub.
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This latex-free, hypoallergenic paper micropore tape adheres well and leaves minimal adhesive residue upon removal. It's designed to keep humidity in and allow for proper air exchange, and its black color will make it nearly invisible to the eye one applied. Each roll measures 10 yards. (Use on small holes around the base of the monotub.)
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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.
*Free shipping only applies to the contiguous 48 U.S. states and does not apply to Hawaii, Alaska, or U.S. Territories.
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- Reviews
- Questions
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Easy for beginners to grow mushrooms in
I am glad I decided to order from you all I love my max yield bin Boomr Bag Monotub kit can't wait for my first flush super easy setup, well packed. I will definitely be back for more products. Thanks
North Spore
Thanks for the great review! If you need help with anything, please reach out.

Incredible customer service
Ordered the max yield bin boomrbag monotub kit and received the wrong tub. I contacted North Spore, got a very fast response, and they sent me the correct monotub right away. Truly second-to-none customer service.
North Spore
Thanks for the great review, Jeff! Please reach out if you ever need anything.

Great
My first time growing and couldn’t imagine anything else making it so easy (way too easy). Came with everything needed but the spores. Great yields with multiple flushes. Would Most definitely recommend for anyone from beginner to a seasoned grower.
North Spore
Thanks for sharing, Kaden! We appreciate you taking the time to share your experience. The team is here to help if you ever need anything.

Perfect grow, start to finish.
There's not much to say other than this kit is perfect. From the bin to the substrate. Most productive and funnest grow I've had so far was using this kit. Can't wait to S2B more.
North Spore
Thanks for the great review, Tim! We're so glad you're loving this kit. If you need help with anything, please reach out.

North Spore - Excellent customer service.
I ordered the Boomer Monotub kit and the plastic tub had a bit of damage and a manufacturing defect. When I contacted North Spore, they immediately replaced the tub with new. This kind of service will keep me as a long term customer. Great company!
North Spore
We appreciate you taking the time to share your experience, Elliot! Please reach out if you ever need anything.


Live culture in a monotub 1st try!
It has been alot of research to get up to this point. I was ready I bought my kit and began the necessary sterilization innoculation and mixing required. I have an extremely healthy mycelium mat and I'm days away from seeing my first pins. I attached computer fans to two of the ports and have a slight positive pressure system going on. Thank you so much. -Bodhi
North Spore
We're so glad everything is working out for you, Bodhi! Our team is here if you need anything!

Top Quality
I am fairly new to growing, but have admired mushrooms for many years. I found North Spore after a couple failed attempts. It don't take a lot to realize from the grain bags, to the substrates are the best I've found, IMO others can't compare! I won't use any other! Thanks to everyone at Northspore
North Spore
Thanks for taking the time to share your experience! We're so happy that you are enjoying our products. Reach out if you ever need anything!

Great way to start growing.
Everything is going well but I need to learn patience. The Reishi liquid culture may have been weak as it is not colonizing too well. Overall I’m happy.

Excited!
Got all materials very quickly. My bag of Coco Coir burst open in shipping, which wasn't a big deal just needed a little clean up after opening the boxes, but North Spore was quick to send me a new bag of Coco Coir I didn't even ask for! Top notch customer service and quality products. Plan on ordering whatever I can from North Spore in the future!
North Spore
Thanks so much, Spencer! We really appreciate the great review.

Great all in one kit.
The only thing missing are spores. Easy to inoculate the grain bag. Everything else was equally easy.
North Spore
Thanks, Rudy! Please reach out if you ever need anything.