Start growing your own dung-loving edible or medicinal mushrooms indoors!

Our beginner-friendly 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. (All that's required is a spore syringe or liquid culture!)

The monotub is designed with airflow and humidity controls and requires no high-tech additions. And the manure-based sterile substrates, injection port bag, and coco coir provide mediums for colonization, incubation, and growth.

We've also included a monotub liner insert to save you time cleanup and prep, plus self-adhesive filters and black micropore tape that fit over holes on the monotub lid and base. These filters and tape are designed to keep out foreign spores and other contaminants while maintaining humidity and air exchange.

Each kit includes:

(1) Max Yield Bins monotub
(3) Boomr Bag Sterile Manure-Based 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 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 (approx. 1/2 inch) is necessary.

Optional accessories:

Monotub colonizer lid

For more detailed information on items included in the kit, click the links below.

Monotub

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) x 15.5”(W) x 12”(H)

Boomr Bag Sterile Manure-Based Substrate

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.)

Organic Sterilized Grain Bag with Injection Port

Our sterile grain bag blend 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.)

Coco Coir (Casing Layer)

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. Bag weighs 5 lbs.

2" Self Adhesive Filters

These 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.)

1/2" Black Micropore Tape

This latex-free, hypoallergenic paper 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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