Mushroom Media
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North Spore North Spore 'Mastr Mix' Sterile Soyhull & Hardwood Bulk Substrate - 5lb
Create your own sawdust spawn and fruiting blocks! Our premium sterilized ‘Mastr Mix’ contains a blend of hardwood sawdust, non-GMO soyhulls, and select substrate amendments. This proprietary blend is formulated for higher yields and has a pleasant, leafy, deep veggie aroma (thanks to the premium soyhulls used in our recipe). After more than a year of development, the result is a product with a better nutritional profile for a faster mycelial run (and even better yields than the original mix mushroom growers have come to love!) ‘Mastr Mix’ is an ideal bulk substrate and can be used with any of our grain spawn strains. Making fruiting blocks? This bulk substrate is ideal for fruiting straight from the bag in a controlled environment (like a martha tent or monotub). Moisture content: Each bag is optimally hydrated for fast colonization times and top yields. How to use: For 3 lb. bag of inoculated grain spawn - we recommend 8-12 bags of Mastr Mix For 6 lb. bag of inoculated grain spawn - we recommend 16-24 bags of Mastr Mix (Higher inoculation rates may improve colonization times and yield.)
$23.99
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North Spore North Spore CVG (Coco Vermiculite Gypsum) Sterile Bulk Substrate - 5lb
Grow a variety of fungi with this beginner-friendly classic! CVG has been helping beginner growers experience the joys of bulk substrates for decades. It’s a simple recipe – Coco, Vermiculite, and Gypsum – that yields consistent results. We use premium, third-party tested ingredients, then hydrate to field capacity and sterilize in industrial autoclaves for a bulk substrate that provides dependable yields. Our ready-to-use CVG blend starts with our own RHP-certified MycoCoco as the base (the first coco coir researched and selected specifically for its mushroom cultivation qualities). We then add asbestos-free, horticulture-grade, US-sourced vermiculite and complete the trifecta with OMRI-approved gypsum. These components have a low bacterial load and low nitrogen levels making them less prone to contamination and ideal for beginner growers. The result is a perfect balanced substrate for mushroom spawn to prosper and fruit. Moisture content: Each bag is optimally hydrated for fast colonization times and top yields. Spawn to bulk ratio: We recommended mixing 1 colonized grain spawn bag with 2-3 bags of CVG. (Higher inoculation rates may improve your success.)
$21.99
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North Spore NorthSpore ‘Boomr Bag’ Manure-Based Sterile Mushroom Bulk Substrate
Our best-selling Boomr Bag is a sterile manure-based 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.
$28.00
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North Spore NorthSpore Organic Sterilized Grain Bag with Injection Port
Our best-selling organic sterilized grain spawn bag was formulated by mycologists to maximize the speed and size of your mushroom grow. (All that's required is a spore syringe or liquid culture!) Each spawn bag contains our proprietary grain blend featuring hydrated, nutrient-rich, organic millet and wheat berries. Bags also include a self-healing injection port for use with a spore or culture syringe plus a 0.2 micron filter patch to block airborne contaminants while providing even gas exchange. (Note: Color of injection port may vary.)
$22.00
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North Spore NorthSpore ‘Wood Lovr’ Organic Hardwood-Based Sterile Mushroom Substrate
Our Wood Lovr is a wood chip-based sterile mushroom substrate formulated by mycologists for hardwood-loving species. The combination of micro-to-macro particle sizes of premium North American hardwood chips and sawdust plus nitrogen supplementation helps to speed up growth and maximize yield. Note: Substrate is hydrated to field capacity. Use Wood Lovr in monotubs, or experiment with trays, buckets, and containers in a humidity-controlled grow room or Martha set up.
$28.00
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Build-A-Soil Growing Organic Sterilized Mushroom Growing Substrate
Our sterilized mushroom growing substrate uses a blend of organic coconut coir, vermiculite, compost, and calcium sulfate in a filter patch bag for optimal mushroom growth. Plus, the bag and packaging the mushroom growing substrate is sterilized in is fully compostable!Our sterilized mushroom growing substrate uses a blend of organic coconut coir, vermiculite, compost, and calcium sulfate in a filter patch bag for optimal mushroom growth. Plus, the bag and packaging the mushroom growing substrate is sterilized in is fully compostable!Use the directions below to make a mushroom growing tub easily at home. Before opening the Sterilized Substrate bag, prepare your fruiting chamber or mono-tub by thoroughly cleaning it with isopropyl alcohol. Be sure to wear latex gloves and do your best to keep your work area as sterile as possible. *If you need help setting up a fruiting chamber or mono-tub, please see the online guides available, so you know you are using the product correctly. Prior to opening the bag, be sure to break up the contents of the bag, so it can become aerated. Now, open the bag and dump the contents into your sterilized bin. Be sure you are still wearing gloves! Take a handful of the substrate in your hand and squeeze it. You should see a few drops of water come out as you squeeze. If you do not, begin to mix small amounts of sterilized water into the mix until it is at proper hydration. *Mushrooms exhale carbon dioxide and inhale oxygen. They will suffocate if there isn’t enough airflow available! Be sure your bin has proper airflow!**Sterilized Water: Water that is free of bacterial and/or microbial life. This is typically done using an autoclave or a pressure cooker. Additionally, you may choose to use 2-3 Tbsp. of hydrogen peroxide per gallon of water to sterilize it. You should use 1.5 lbs. of inoculated grain spawn per 5 lb. bag of the substrate. Mix your grain spawn thoroughly into the substrate in your tub. Still wearing latex gloves, cover your bin with its lid, but ensure there are filtered holes in it for air exchange. *Incubation for most species will take about 2-3 weeks; some longer. Check your bin regularly and look for healthy mycelium growth. Your bin will slowly turn white from mycelium growth. When the bin is fully colonized, you will begin to see mushroom pins or hyphae growing from the top of the substrate. At this point, you can either let the mushrooms continue to grow on their own or add a thin layer of coco coir or other media to the top. *Keep your bin humid, the air flowing, and you’ll be enjoying your own fungi right at home in no time. Get a complete step-by-step guide to growing indoor mushrooms here. Looking to grow mushrooms outdoors? You can use our mushroom substrate bags to grow mushrooms on outdoor beds with ease! *Shall be used only for lawful purposes
$38.50
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Build-A-Soil Build A Soil Growing Organic - Sterilized Grain Bag with injection port 3LB
Ready to start growing mushrooms right at home? Our sterilized grain bag with an injection port is the perfect place to start your mycology journey at home.100% ORGANIC: Each bag contains 3 pounds of organic millet ensuring only the purest source of grains for your mushroom growing needs.HOW IT WORKS: With the sterilized grain bag, you can easily innoculate your bag with liquid culture (not included) and begin your journey to fruiting mushrooms right at home! Upon receiving your bag, inspect it immediately for contamination even if you don't plan on using it immediately. After you have injected your bag with spores it is non-refundable.ZERO WASTE PACKAGING: Each bag is packaged in a biodegradable plastic bag and compostable outer packaging. This ensures that nothing goes to waste when you purchase from us!
$27.50
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North Spore NorthSpore 8-Pack ‘Boomr Bag’ Manure-Based Sterile Mushroom Substrate
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.
$224.00 $149.99
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North Spore NorthSpore 'ShroomTek' All-In-One Mushroom Grow Bag
Grow dung-loving mushrooms right in the bag! Our beginner-friendly ShroomTek All-In-One Mushroom Grow Bag was formulated by mycologists to simplify mushroom growing while maximizing the speed and size of your grow. (All that's required is a spore syringe or liquid culture!) The entire grow takes place inside the bag – from inoculation to colonization to flush – making the entire process both seamless and effortless. As easy as inject, grow, harvest ShroomTek contains a proprietary blend of sterilized, nutrient-rich, organic manure-based compost, organic grain, coco coir, and several quality substrate supplements (although we keep the exact blend a secret!) Each bag is optimally hydrated for substrate mix and volume to ensure a healthy, well-hydrated environment for optimal mycelial growth. Bags also include a self-healing injection port for use with a spore or culture syringe plus a 5 micron filter patch to block airborne contaminants while providing even gas exchange. Once inoculated, you can expect your first flush within 30-60 days (depending on species and strain.) Note: Color of injection port may vary. Sterile and ready to use Bags are sterilized in a commercial-grade steam autoclave, and sterility is verified using biological indicators and temperature sensors. (Condensation around the injection port may occur, and will not negatively impact the product or its performance.) Inoculation ratio We recommend using 2.5-5ccs of your favorite spore syringe or liquid culture syringe. (Higher inoculation rates may improve colonization times and mitigate contamination.)
$35.00
