Sterile Substrate ‘Boomr Bag’ Manure-Based Sterile Mushroom Substrate

Manure based sterile substrate for growing mushrooms

Grain spawn and substrate in a monotub for growing mushrooms

Grain spawn and substrate in a filter patch bag for growing mushrooms

Substrate in an outdoor bed for growing mushrooms

Sterile Substrate Boomr Bag Sterile Manure-Based Mushroom Bulk Substrate

„Boomr Bag“ Mistbasiertes steriles Pilzsubstrat

Name: „Boomr Bag“ Mistbasiertes steriles Pilzsubstrat
Brand: North Spore
SKU: EQUIP-BOOMR-5LB
Price: 25.95 EUR
Availability: InStock
Rating: 4.9 (674 reviews)

€25,95

Maximieren Sie Ihren Pilzertrag!

Unser meistverkaufter Boomr Bag ist ein steriles mistbasiertesBulk-Pilzsubstrat, das von Mykologen entwickelt wurde, um den Ertrag Ihrer Zucht zu steigern. Über mehrere Jahre hinweg wurde die Rezeptur für düngeliebende Pilzartenperfektioniert und genießt bei Pilzzüchtern großes Vertrauen. Verwenden Sie Boomr Bag in Monotubs, Filterbeuteln und Außenbeeten. Oder züchten Sie Pilze aus dem Beutel oder in einer Schale in einem feuchtigkeitskontrollierten Anzuchtraum oder einer Martha-Anlage.

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Single Box (5 lb)

$28.99/bag

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8-Pack (Best Value)

$16/bag

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Verbessern Sie Ihre Pilzzucht in Innenräumen mit dem „Boomr Bag“ Mist-basierten sterilen Pilzsubstrat von North Spore. Dieses hochwertige, gebrauchsfertige sterile Substrat bietet eine ideale Grundlage für erfolgreiche und ertragreiche Ernten, insbesondere für mistliebende Pilzsorten.

Jeder „Boomr Bag“ enthält eine präzise formulierte Mischung aus pasteurisiertem Mist, Kokosfasern, Vermiculit und Gips, die eine reiche, nährstoffdichte Umgebung gewährleistet. Unser sorgfältiger Sterilisationsprozess garantiert einen kontaminationsfreien Start, entscheidend zur Minimierung von Risiken während der Inokulation und Kolonisation.

Dieses sterile Substrat wurde für eine optimale Pilzkolonisierung entwickelt und reduziert die Wahrscheinlichkeit konkurrierender Schimmelpilze und Bakterien erheblich, wodurch ein kräftiges Myzelwachstum gefördert wird. Sein robustes Nährstoffprofil unterstützt eine gesunde Fruchtkörperentwicklung, was zu konsistenten und hochwertigen Ernten führt. Zu den Hauptvorteilen dieses Premium-Substrats gehören:

Reduziertes Kontaminationsrisiko für Züchter
Optimale Nährstoffversorgung speziell für mistliebende Pilzsorten
Konstante Feuchtigkeitsspeicherung für stabile Wachstumsumgebungen

Der praktische 5-Pfund-„Boomr Bag“ ist perfekt geeignet für den Einsatz in Monotubs, Anbauzelten und anderen kontrollierten Indoor-Anbausystemen. Sein konstanter Feuchtigkeitsgehalt und seine ausgewogenen Belüftungseigenschaften tragen zu einem stabilen Mikroklima bei, das für die Pilzentwicklung unerlässlich ist.

Für beste Ergebnisse integrieren Sie den „Boomr Bag“ in Ihre sterilen Anbaupraktiken. Beachten Sie unsere detaillierten Anleitungen zur Substratvorbereitung und Inokulationstechniken, um das Potenzial Ihres Pilzanbaus zu maximieren. Entdecken Sie das gesamte Sortiment an Pilzanbauzubehör von North Spore, um Ihre Einrichtung zu vervollständigen.

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

Hinweis

Die Produkte von North Spore dürfen ausschließlich für rechtmäßige Zwecke verwendet werden. North Spore duldet den Anbau von Psilocybin (Psilocybe cubensis) oder halluzinogenen („magischen") Pilzen in Rechtsgebieten, in denen dieser derzeit illegal ist, nicht.

Grow Right

Bio-Sterilisierter Getreidebeutel mit Injektionsport (+€20,95)

Add an extra grain bag

Syringe Multiplier & LC Kit (+€23,95)

Multiply any spore or syringe into 30 syringes!

"Boomr Bin" Monotub (+€26,95)

The best grow chamber for bulk substrate

NocBox Still Air Box (+€65,95)

Reduce contaminants when you mix or inject substrate

Nitrile Gloves (+€12,95)

Stay clean, stay sterile

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.

Reviews

5 stars: 640 (95%)
4 stars: 20 (3%)
3 stars: 5 (1%)
2 stars: 1 (0%)
1 star: 8 (1%)

Great Product

Bought an 8-pack of Boomrbags and so far so good. I have 2 monotubs using this bulk substrate that are now almost 100% colonized with no signs of contamination. Substrate bags were easy to use, came perfectly hydrated to field capacity, and didn't require any additional moisture added. I highly recommend using this substrate in a monotub or any other bulk substrate setup.

We're so glad you're loving the Boomr Bags, David! Thanks for the great review.

Substrate

I love it, they work great!!
I'm going to keep ordering from north spore..
Thank you..

Best substrate around!

I have had many successful grows using BoomrBags and the few times there had been a problem with the bags I get the replacement very quickly. These guys rock!

Best of the best when it comes to customer service and cultivating mushrooms. Thank you for fixing my other order. I will always buy my mushroom supplies from NORTH SPORE.

SINCERELY,
JOHN BONACCI

Took a lot longer than the listed processing/shipping time. Still have an order I placed before this one that hasnt arrived yet

Just used a 5lb bag of this substrate with 3lbs of innoculated grain spawn we will see in 2 weeks how the tub is looking then.

Great product as Always! Thanks guys

Great substrate. Monster flushes

I finally got it today

Always fast and always great grows!! Thanks guys!

Worth it!

Fast shipping, discreet packaging, I have 3 bags growing like champs, its really very easy!

Thank you! We're so glad to hear everything arrived quickly and your bags are doing well. Happy growing!

thank you :)

works like its supposed too.

I've innoculated 3 bags with success every time. I'm pretty sure I will continue to use these on all my future grows. I don't see any reason to look elsewhere. Super simple and success is pretty easy with these.

Thanks so much, Chris! We truly appreciate your support.

Awesome product

It was exactly what we needed. Excellent products

Awesome quality

Super high quality, I add this to my house plants and they thrive!!!!! Fast shipping!

Thanks for the great review, Natasha! We really appreciate your support.

Awesome

Great bags

These bags are awesome. Very easy

Amazing

This stuff is gold for mushroom growing. Made my first time growing a breeze!

Awesome, Chelsea! Thanks for sharing.

always an outstanding product

product was well packaged, clean, and as always a number one.

Thanks for sharing, Dustin! We appreciate your support.

Quick shipping

Everything worked great

Contamination

I purchased an 8 pack of grain and an 8 pack of these boomr bags. All came from the same batch and after using quite a few and getting contamination. I looked closer and saw the boomr bags were contaminated before even opening. I waited a little bit and it grew. I submitted a claim and havent heard anything from north spore. I will say that I have used them plenty times before with no issue but now that I came across one, there doesnt seem to be much support.

Came Perfectly within days of my order.

Great stuff

These bags are the best bags around. They’re awesome. This is my go to place to buy anything.

This made our day—thank you for the feedback and for choosing us! We hope that you continue to enjoy our products!

Best on the market

Crazy good mixture.

Thanks so much for the review! We couldn't do it without customers like you!

Excellent

I’ve been loyal to North Spore ever since I first developed interest in educating myself about the process of growing mushrooms! Fast forward to today, and I still shop with North Spore exclusively due how great my experience has been. Even in the event of something unexpected happening North Spore’s customer service has always done an amazing job of fixing it and fast. The company as a whole is bar none top shelf and so I have never had a need for entertaining shopping anywhere else.

Excellent! Always consistant!

Love it

Everything I buy from here is great. I recommend buying it.

Thanks for the great review, Jason!

Great stuff

This stuff works awesome. Buy it every time.

Thanks Jason!