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Hit space bar to expand submenuGROW
  • Hit space bar to expand submenuBeginner Kits
    • 'Spray and Grow' Kits
    • Advanced Indoor Grow Kits
    • Outdoor Log Kits
  • Hit space bar to expand submenuSpawn
    • Grain Spawn
    • Sawdust Spawn
    • Plug Spawn
  • Hit space bar to expand submenuSterile Substrates
    • Boomr Bag
    • Injection Port Bag
  • Hit space bar to expand submenuSupplies
    • Cultivation Equipment
    • Tools for Log Inoculations
  • Hit space bar to expand submenuCulture Bank
    • see all cultures
Hit space bar to expand submenuLEARN
  • Hit space bar to expand submenuFAQ
    • Mushrooms 101
    • Spawn FAQ
    • Indoor Grow Kit FAQ
    • Outdoor Cultivation FAQ
    • Boomr Bag FAQ
    • Shipping FAQ
    • Log Inoculation Calculator
  • Hit space bar to expand submenuWalkthroughs
    • Gardening with Mushrooms
    • Outdoor Mushroom Beds
    • Grow Mushrooms on Logs
    • Monotub Tek
    • Grow Mushrooms with a Kit
    • Reuse Your Spray and Grow Kit
  • Hit space bar to expand submenuBlog
    • Choosing Mushroom Spawn
    • Growing Mushrooms in the Desert with Jacq Davis
    • Which Tree Species is Best?
    • Species Spotlight: Reishi
    • Medicinal Mushrooms: The Mycelium vs. Fruiting Body Dispute
  • Hit space bar to expand submenuBooks
    • Radical Mycology
    • Growing Gourmet and Medicinal Mushrooms
    • Organic Mushroom Farming and Mycoremediation
    • see all books
Hit space bar to expand submenuTHRIVE
  • Hit space bar to expand submenuWellness Products
    • Lion's Mane
    • Immunity Blend
    • Chaga
    • Cordyceps
    • Reishi
  • Hit space bar to expand submenuDried Mushrooms
    • Morels
    • Porcini
    • Lobster
    • Chanterelle
  • Hit space bar to expand submenuNorth Spore Merch
    • T-Shirts
    • Stickers
    • Gift Cards
Hit space bar to expand submenuCONNECT
  • Team | Mission
  • Work With Us
  • Contact
  • Newsletter
  • Wholesale
  • Products for Retail
  • Research Partners
SPORE REWARDS
VOUCHER REDEMPTION

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No more cooking horse dung in your oven, no more sourcing wood chips treated with anti-fungal agents, no more unsterile contaminated grain bags!

Sterile Substrate 'Boomr Bag' Manure Based Sterile Substrate 5lb
Sold out
Learn More

Sterile Substrate 'Boomr Bag' Manure Based Sterile Substrate 5lb
Sold out
Learn More

Sterile Substrate 'Boomr Bag' Manure Based Sterile Substrate 5lb
Sold out
Not Available
Learn More

Bulk Substrates to Cultivate edible mushrooms in Monotubs, Outdoor Beds, or straight from the bag in a Martha setup!

Monotub
Outdoor Bed
Grow from Bag

Quality Sterile Bulk Substrates are the foundation of any mushroom grow...

Whether you are growing in monotubs, outdoor beds, or from the polyethylene bag in a Martha tent, North Spore has the substrate for you.

With our premium line of Sterile Substrates we make home mushroom growing easy and efficient.

The best quality guarantee in the mushroom biz...

North Spore is your trusted source for the highest quality mushroom substrates on the market and unparalleled customer service.

With multiple trained mycologists on staff and a team of mushroom experts in our customer service department we are committed to your success and will help you you every step of the way!

*North Spore’s products shall be used only for lawful purposes

Sterile Substrates

  1. Home
  2. Sterile Substrates

No more cooking horse dung in your oven, no more sourcing wood chips treated with anti-fungal agents, no more unsterile contaminated grain bags!

Sterile Substrate 'Boomr Bag' Manure Based Sterile Substrate 5lb
Sold out
Learn More

Sterile Substrate 'Boomr Bag' Manure Based Sterile Substrate 5lb
Sold out
Learn More

Sterile Substrate 'Boomr Bag' Manure Based Sterile Substrate 5lb
Sold out
Not Available
Learn More

Bulk Substrates to Cultivate edible mushrooms in Monotubs, Outdoor Beds, or straight from the bag in a Martha setup!

Monotub
Outdoor Bed
Grow from Bag

Quality Sterile Bulk Substrates are the foundation of any mushroom grow...

Whether you are growing in monotubs, outdoor beds, or from the polyethylene bag in a Martha tent, North Spore has the substrate for you.

With our premium line of Sterile Substrates we make home mushroom growing easy and efficient.

The best quality guarantee in the mushroom biz...

North Spore is your trusted source for the highest quality mushroom substrates on the market and unparalleled customer service.

With multiple trained mycologists on staff and a team of mushroom experts in our customer service department we are committed to your success and will help you you every step of the way!

*North Spore’s products shall be used only for lawful purposes

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North Spore

90 Bridge Street

Westbrook, ME 04092

info@northspore.com

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We stand by the integrity of our products 100%. If you have any questions or concerns, please feel free to contact us. We want to ensure that you are completely satisfied with your North Spore experience.

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Product Packaging / Disclaimer

North Spore’s products shall be used only for lawful purposes. North Spore cannot and does not promise that its products will yield any particular results for you. North Spore will not be liable to you or to any other person for any damages of any kind in connection with the use of our products, and we make no warranties of any kind, including warranties of merchantability or fitness for a particular purpose, relating to or arising from the use of our products, except as required by law.

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