Designed by Max Yield Bins to make indoor mushroom growing easy, this monotub is equipped to control airflow circulation and humidity retention. Durable, with tight-fitting latches to keep the lid sealed to the base, it's fit with a custom light-blocking base to prevent mushrooms from growing on the sides or bottom of your bin.

Dimensions: 22.5” (L) 15.5” (W) 12” (H)

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.

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.

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.) 

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. 

These self-adhesive filters are made from 100% recycled filter material and sized to fit over 2" holes on monotubs. Use these in place of polyfill to keep out foreign spores and other contaminants while maintaining humidity and air exchange. Each sheet contains 6 filters. (Use on 2" holes found on the lid of the monotub.)

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.)

Monotub Tek Method Set Up & Grow Guide

Why is the difference between the large and small holes on the monotub?

Both the large and small holes are for gas exchange. However, given the proximity of the small holes to the substrate, many growers will remove the micropore tape during fruiting to increase oxygen -- especially if the mushroom caps are too small and/or the stems are too thin and stringy. That said, if the mushrooms are growing just fine, many will just leave the micropore tape on (as it protects against contamination.)

Do I need to use micropore tape on the small holes, or can I just leave them open?

During colonization, you don't want the small holes open. Covering them with the black micropore tape keeps out contaminants and maintains a higher CO2 level.

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.