NORTH SPORE Boomr Bag Sterile Manure-Based Mushroom Substrate, 5lb Cloning Systems sterilize before and after each

sterilize before and after each subsequent use

20 in wide

the fans can be mounted in any direction

and weighing in at just 50 pounds

which eliminates any chance of starting the spiraling process as well as dramatically increases growth rates

NORTH SPORE Boomr Bag Sterile Manure-Based Mushroom Substrate, 5lb Cloning Systems sterilize before and after eachNORTH SPORE Boomr Bag Sterile Manure Based Mushroom Substrate The best selling Boomr Bag is a sterile bulk mushroom 5lb 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