Boomr Bag is a sterilized manure-based sterile bulk substrate used to grow any dung-loving species of edible mushroom.

Please note that North Spore's products shall be used only for lawful purposes. North Spore does not condone the use of Boomr Bags to grow any species of mushroom that contains Psilocybin unless they are legal in your jurisdiction.

Boomr Bags should be stored at room temperature out of direct sunlight.

If kept at room temperature and out of direct sunlight, a Boomr Bag can be stored for several months before use.

No refrigeration is necessary.

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.

With Boomr Bag, you can grow the dung-loving mushroom of your choice. It's an ideal substrate for any mushroom species that prefers a nutrient-rich media, including Agaricus sp., shaggy mane, oyster mushrooms, and more!

The blend is sterilized in an industrial autoclave in a 5 micron filter patch bag.

We recommended 1 lb of colonized grain spawn for each 5 lb Boomr Bag. (Higher inoculation rates may improve your success.) Be sure to mix your grain spawn thoroughly into your Boomr Bag substrate. We always recommend clean hands and latex gloves to reduce the introduction of contaminants.

You can use your Boomr bag in a monotub, filter bag, or outdoor bed.

Yes! In fact, we made the following monotub tek instruction video which includes Boomr Bag.

North Spore stands behind its products 100%. Our mission is to help you successfully grow mushrooms, and we are here to help guide you on your mushroom cultivation journey. If you are ever dissatisfied with our products for any reason just let us know. We are always here to help!

A "boomer" is any mushroom that grows rapidly. And because we formulated Boomr Bag to maximize your mushroom yield, the name seemed fitting :-)