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North Spore

North Spore Boomr Bag Sterile Manure-Based Mushroom Bulk Substrate

North Spore Boomr Bag Sterile Manure-Based Mushroom Bulk Substrate

Regular price $28.00 USD
Regular price Sale price $28.00 USD
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North Spore's best-selling Boomr Bag is a sterile bulk mushroom substrate formulated by mycologists to increase the yield of your grow. 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. Note: Substrate is 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.) 

  • We recommend clean hands, latex gloves, and sterile technique when using Boomr Bag 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.
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