Substrat de champignon stérile à base de fumier « Boomr Bag » (paquet de 8)

$127.99

Notre sac Boomr, notre meilleure vente, est un substrat de culture de champignons stérile à base de fumier, formulé par des mycologues pour augmenter le rendement de votre culture. Au fil de plusieurs années, la recette a été perfectionnée pour les espèces de champignons coprophileset est largement approuvée par les cultivateurs de champignons. Utilisez le sac Boomr dans des monotubes, des sacs filtrants et des lits extérieurs. Ou cultivez des champignons à partir du sac ou dans un plateau à l'aide d'une chambre de culture à humidité contrôlée ou d'une installation Martha.

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20% OFF THIS BOOM PRODUCT
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En stock. Expédié sous 2 à 5 jours ouvrés.

Trusted by 350K+ Growers

Trusted by 350K+ Growers

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USDA Certified Organic

USDA Certified Organic

Améliorez votre culture de champignons en intérieur avec le substrat de champignon stérile à base de fumier « Boomr Bag » de North Spore en pack de 8. Ce substrat de qualité professionnelle est conçu pour une colonisation mycélienne optimale, offrant une base pour des rendements de champignons robustes et productifs.

Chaque « Boomr Bag » contient un mélange de substrat à base de fumier soigneusement formulé. Ce riche matériau organique fournit les nutriments essentiels, favorisant une croissance vigoureuse et assurant le développement de récoltes de champignons saines et denses.

Notre substrat subit un processus de stérilisation précis, éliminant les organismes concurrents. Cette étape cruciale minimise les risques de contamination, offrant un environnement propre et fiable pour un développement réussi des champignons, idéal pour les monotubes.

Le pack pratique de 8 assure un approvisionnement suffisant pour plusieurs projets de culture ou des installations plus grandes. Conçus pour être faciles à utiliser, ces sacs de substrat stérile s'intègrent parfaitement dans divers systèmes de culture en intérieur.

Pour des instructions détaillées sur l'utilisation efficace du substrat « Boomr Bag » dans votre méthode de culture spécifique, veuillez consulter nos guides complets sur le site Web de North Spore.

Why It's Dope
  • Made entirely from organic materials
  • Balanced pH with a complex nutrient profile
  • Proven vigorous mycelial growth
  • Fast colonization and higher yields
  • Increased aeration and moisture retention 
  • Hydrated to field capacity

Boomr Bag is made from a blend of quality local, organic, and non-GMO materials including a proprietary blend of composted horse manure, coco coir, and several quality substrate supplements (although we keep the exact blend a secret!) Unlike other substrates that contain harmful additives, you can rest assured that your grow will be natural and chemical free.

How to Use

Spawn to bulk ratio

We recommended mixing 1 colonized grain spawn bag with 2-3 bags of sterile substrate. (Higher inoculation rates may improve your success.) 

Best Practices

We recommend clean hands, latex or nitrile gloves, and sterile technique when using sterile substrate 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. Rest assured that your purchase is 100% guaranteed. If your substrate was compromised, we will replace it.

Storage

Sterile substrates should be stored at room temperature out of direct sunlight. No refrigeration is necessary. They can also be stored for several months before use.

Made Right, Guaranteed
  • Sterilized in a commercial-grade autoclave for consistent results
  • Multiple bags from every batch tested in our state-of-the-art lab
  • Verified using biological indicators and temperature sensors
  • Backed by our 100% Guarantee — if it’s not sterile, we’ll make it right
Notice

North Spore's products shall be used only for lawful purposes. North Spore does not condone Psilocybin (Psilocybe cubensis) or hallucinogenic (magic) mushroom growing in jurisdictions where it is currently illegal.

CA Prop 65 Notice

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Sterile Substrate FAQs

Choose Boomr Bag for massive flushes of dung-loving species, CVG for versatile bulk grows and great moisture retention (great for beginners), and Wood-Lovr for wood-loving species like oysters, lion’s mane, and reishi. Each is optimized for the best yield and growth rate in its category.

Keep bags at room temperature and out of direct sunlight. Substrates can be stored for several months, and grain bags should be used within a few weeks for best results.

We sterilize our products in commercial autoclaves and test every single batch for bacterial growth so you know the product is sterile when you receive it. And if the bag is compromised in any way during shipping, our 100% guarantee means we'll make it right

While you can grow directly in the bag, the best way to grow with bulk substrate is to to use a monotub.

A general rule is 1 colonized grain bag for every 2–3 substrate bags. Higher spawn ratios often speed up colonization and reduce the risk of contamination.

Grain bags are for colonizing mycelium, while sterile substrates (like Boomr Bag, CVG, or Wood-Lovr) are for fruiting mushrooms. You’ll inoculate the grain bag first, then mix the fully colonized grain with your chosen substrate to begin fruiting.

Cluster of brown-capped mushrooms with long, light-colored stems against a white background.

Lab-Crafted. Grower-Approved.

Get the most out of your grow with our premium sterilized substrates—formulated, hydrated, and sterilized to deliver consistent, high-yield results. Each batch is crafted from organic ingredients and sterilized in a commercial-grade autoclave for contam-free performance. Whether you’re spawning to bulk for the first time or fine-tuning advanced grows, our substrates provide the perfect foundation for strong, healthy mycelial growth.

The right mix for every grow

Our substrates start with premium organic ingredients—nutrient-rich, finely milled, and perfectly balanced for ideal texture, aeration, and moisture. Each blend is designed by mycologists to support vigorous mycelial growth and consistent, high-yield harvests. Built on quality ingredients and precise formulation, they’re the foundation every successful grow begins with.

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