{"title":"Bulk Mushroom Substrate","description":"\u003cp\u003eBulk materials for mixing your own substrate: soyhull and hardwood pellets, millet grain, vermiculite, coco coir and straw.\u003c\/p\u003e","products":[{"product_id":"bulk-organic-soyhull-pellets-for-mushroom-cultivation","title":"Bulk Organic Soyhull Pellets for Mushroom Cultivation","description":"\u003cp\u003eAchieving optimal mushroom yields begins with a meticulously prepared substrate. North Spore’s \u003cstrong\u003eOrganic Soyhull Pellets\u003c\/strong\u003e are specifically formulated to enhance the nutritional profile of your cultivation medium, promoting superior fungal development.\u003c\/p\u003e\n\u003cp\u003eThese premium soyhull pellets serve as a vital substrate amendment, providing a rich source of nitrogen and protein. This essential nutritional boost fuels vigorous mycelial colonization and supports the formation of larger, healthier fruit bodies across various mushroom species.\u003c\/p\u003e\n\u003cp\u003eSourced from non-GMO soybeans, our soyhull pellets are an agricultural byproduct, reflecting North Spore's commitment to sustainable and high-quality cultivation inputs. They are certified organic, aligning with our dedication to premium, uncontaminated growing practices.\u003c\/p\u003e\n\u003cp\u003eSoyhulls are particularly effective when blended with hardwood substrates, such as oak or maple sawdust. This combination creates a balanced and nutrient-dense environment conducive to robust mushroom growth, especially for species known for their demanding nutritional requirements.\u003c\/p\u003e\n\u003cp\u003eIncorporating these pellets into your substrate recipe helps increase the overall nutrient availability. This translates to enhanced biological efficiency, allowing cultivators to achieve more consistent and abundant harvests from each block or bag.\u003c\/p\u003e\n\u003cp\u003eNorth Spore, founded by mycologists, offers products rooted in scientific expertise. Our organic soyhull pellets are rigorously selected to ensure they meet the stringent quality standards our customers expect for reliable cultivation results.\u003c\/p\u003e\n\u003cp\u003eWhether you are an indoor hobbyist or a commercial grower, these pellets contribute to a productive and efficient cultivation process. They are a practical addition for anyone looking to maximize their mushroom production sustainably.\u003c\/p\u003e\n\u003cp\u003eExplore our comprehensive guides and resources to learn more about substrate supplementation and optimize your mushroom growing journey with North Spore's trusted supplies.\u003c\/p\u003e","brand":"North Spore","offers":[{"title":"10 lbs","offer_id":52325725700391,"sku":"SOYHULLS-10LB","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0951\/9693\/8535\/files\/cultivation-equipment-bulk-organic-soy-hull-pellets-for-mushroom-cultivation-29606175146086.jpg?v=1791996830"},{"product_id":"myco-coco-loose-coco-coir-substrate-casing-layer","title":"Myco Coco' Loose Coco Coir Substrate \u0026 Casing Layer","description":"\u003cp\u003eOur loose hydrated 'Myco Coco' coco coir was developed for superior mycelial growth and provides optimal pH, moisture retention, even gas exchange, and key trace minerals to your mushroom grow. The first coco coir researched and selected specifically for its mushroom cultivation qualities, Myco Coco can be used as both a casing layer and substrate additive. \u003c\/p\u003e\n\u003cp\u003eTriple-washed and buffered to adjust pH and nutrient levels, Myco Coco creates the ideal air-to-water ratio, making it ideal for cultivating gourmet and medicinal mushrooms. RHP certified to guarantee the highest substrate standards in the industry, it is naturally free of pests and weed seeds.\u003c\/p\u003e\n\u003cp\u003eMyco Coco is made from coconut husks, is biodegradable, and is a 100% renewable resource. It also contains traces of Magnesium and Calcium that contribute to the overall growth of mushrooms.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow to use:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAs a casing layer:\u003c\/strong\u003e Coco coir should only be added to fully-colonized substrate covered in mycelium with well-developed primordia and\/or pins beginning to form. Only a thin layer of coco coir (1\/4 to 1\/2 inch) is necessary.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIn bulk substrate:\u003c\/strong\u003e Combine coco coir with other ingredients to your bulk recipe at the desired quantity. Pasteurize or sterilize after combination.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003ePasteurizing:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eCoco coir is naturally resistant to bacteria. However, some users prefer to pasteurize it. Should you choose to do so, we recommend steam pasteurization or a water bath at 180 degrees for 1-2 hours. Once pasteurized, squeeze out excess water and allow to dry before use. (Latex gloves recommended.)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStorage:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCoco coir is best stored in a cool, dry place. Because it can easily absorb moisture, we recommend storing in food-grade, air tight containers.\u003c\/p\u003e","brand":"North Spore","offers":[{"title":"5 lbs","offer_id":52325725765927,"sku":"COCO-5LB","price":9.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0951\/9693\/8535\/files\/cultivating-tools-myco-coco-loose-coco-coir-substrate-casing-layer-30805952856166.jpg?v=1791996830"},{"product_id":"bulk-organic-millet-grain-for-mushroom-cultivation","title":"Bulk Organic Millet Grain for Mushroom Cultivation","description":"\u003cp\u003e\u003cstrong\u003eGive your mushroom cultures a clean, consistent foundation.\u003c\/strong\u003e Bulk Organic Millet Grain for Mushroom Cultivation is a versatile raw ingredient for preparing mushroom spawn or enriching supplemented substrates. Its small, individual grains provide plentiful inoculation points, helping mycelium move efficiently through the jar or bag.\u003c\/p\u003e\n\n\u003cp\u003eCompared with rye and wheat, millet has a much lower endospore load. That makes it a practical grain choice for growers focused on reliable preparation and contamination-conscious cultivation workflows.\u003c\/p\u003e\n\n\u003cp\u003eMillet is especially useful for making grain spawn for indoor mushroom growing. Once fully colonized, it can be used to inoculate bulk substrates and expand a culture into a larger growing project.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eOrganic millet grain for mushroom cultivation\u003c\/li\u003e\n\u003cli\u003eSuitable for grain spawn and substrate supplementation\u003c\/li\u003e\n\u003cli\u003eSmall grains create abundant inoculation points\u003c\/li\u003e\n\u003cli\u003eLower endospore load than rye and wheat\u003c\/li\u003e\n\u003cli\u003eUseful for beginner projects, hobby grows, and larger cultivation workflows\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eAs a substrate supplement, millet can add accessible nutrition and structure to a properly prepared growing medium. Its compact size also helps distribute colonized grain throughout a bulk substrate, supporting even inoculation when used with an appropriate cultivation method.\u003c\/p\u003e\n\n\u003cp\u003ePrepare and sterilize the grain according to your preferred spawn-making process before inoculation. Proper hydration, sterilization, clean handling, and suitable storage remain essential for successful mushroom cultivation.\u003c\/p\u003e\n\n\u003cp\u003eThis 10-pound bulk size is a practical option for growers who want to prepare multiple jars or bags without repeatedly restocking smaller quantities. It fits naturally into home laboratories, teaching projects, and regular indoor growing routines.\u003c\/p\u003e\n\n\u003cp\u003eWhether you are expanding a favorite culture or learning the fundamentals of grain spawn, Organic Millet Grain offers a straightforward, versatile starting material backed by North Spore’s mycologist-informed approach to cultivation supplies.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFor spawn production, substrate supplementation, and dependable indoor mushroom-growing workflows, millet is a simple ingredient with broad practical value.\u003c\/strong\u003e\u003c\/p\u003e","brand":"North Spore","offers":[{"title":"10 lbs","offer_id":52325727371559,"sku":"MILLET-10LB","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0951\/9693\/8535\/files\/cultivation-equipment-bulk-organic-millet-grain-for-mushroom-cultivation-29607705149542.jpg?v=1791996887"},{"product_id":"bulk-vermiculite-for-mushroom-cultivation","title":"Bulk Vermiculite for Mushroom Cultivation","description":"\u003cdiv class=\"product-description rte\"\u003e\n\u003cp\u003e\u003cstrong\u003eImprove moisture and nutrient retention!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis asbestos-free, odorless, horticulture-grade vermiculite provides superior moisture and nutrient retention when used as a substrate additive. It also allows for greater aeration, an essential component for larger flushes and faster colonization.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA3 medium coarseness is ideal for mushroom cultivation, as it has greater water retention capacity and can be used for external casings.\u003c\/li\u003e\n\u003cli\u003eIdeal for use in cake-style, manure-based, and straw-based mushroom cultivation methods.\u003c\/li\u003e\n\u003cli\u003eA thin layer can be added to the base of a fruiting chamber to increase ambient humidity.\u003c\/li\u003e\n\u003cli\u003eOMRI Certified - product can be used in certified organic operations under the USDA National Organic Program.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e⚠ CAUTION:\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eAvoid creating dust. Breathing dust may be harmful to your health. Use with adequate ventilation or with respiratory protection.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"North Spore","offers":[{"title":"Default Title","offer_id":52325729763623,"sku":"VERM-1LB","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0951\/9693\/8535\/files\/cultivation-equipment-bulk-vermiculite-for-mushroom-cultivation-1184413456.jpg?v=1791996894"},{"product_id":"bulk-hardwood-pellets-for-mushroom-cultivation","title":"Bulk Hardwood Pellets for Mushroom Cultivation","description":"\u003cp\u003eUnlock the potential of your mushroom cultivation with North Spore's Bulk Hardwood Pellets, an essential component for crafting high-quality substrates.\u003c\/p\u003e\u003cp\u003eOur hardwood pellets are meticulously produced from a blend of kiln-dried oak and other select hardwoods, sourced sustainably from recycled furniture mill wood scraps.\u003c\/p\u003e\u003cp\u003eEach pellet is \u003cstrong\u003echemical-free\u003c\/strong\u003e, ensuring a pristine and uncontaminated growth environment critical for successful mycology.\u003c\/p\u003e\u003cp\u003eThese versatile pellets serve as an ideal raw ingredient for various mushroom growing applications. They are designed for efficient use in both sawdust spawn and fruiting block production.\u003c\/p\u003e\u003cp\u003eBy providing a consistent and nutrient-rich base, these hardwood pellets support robust mycelial colonization and healthy fruiting body development for a wide range of species.\u003c\/p\u003e\u003cp\u003eAs part of North Spore's commitment to scientific rigor and premium quality, these pellets uphold the standards expected by mycologists and serious cultivators.\u003c\/p\u003e\u003cp\u003eWhether you are a hobbyist refining your technique or a commercial grower scaling production, integrating these bulk hardwood pellets into your substrate recipes contributes to consistent and reliable yields.\u003c\/p\u003e\u003cp\u003eExplore the full potential of your indoor growing projects and enhance your substrate formulations with this foundational ingredient.\u003c\/p\u003e","brand":"North Spore","offers":[{"title":"10 lbs","offer_id":52325731303719,"sku":"PELLETS-10LB","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0951\/9693\/8535\/files\/cultivating-tools-bulk-hardwood-pellets-for-mushroom-cultivation-29607705051238.jpg?v=1791996947"},{"product_id":"myco-coco-compressed-coco-coir-substrate-casing-layer","title":"Myco Coco' Compressed Coco Coir Substrate \u0026 Casing Layer","description":"\u003cp data-mce-fragment=\"1\"\u003e\u003cspan style=\"font-weight: 400;\" data-mce-fragment=\"1\"\u003eOur dehydrated coco coir was developed for superior mycelial growth, providing optimal pH, moisture retention, even gas exchange, and key trace minerals to your mushroom grow. The first coco coir researched and selected specifically for its mushroom cultivation qualities, Myco Coco can be used as both a casing layer and substrate additive. It is also a world-class substrate for growing plants indoors or outdoors.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\" data-mce-fragment=\"1\"\u003eTriple-washed and buffered to adjust pH and nutrient levels, Myco Coco creates the ideal air-to-water ratio, making it ideal for cultivating gourmet and medicinal mushrooms. RHP certified to guarantee the highest substrate standards in the industry, it is naturally free of pests and weed seeds. Myco Coco is made from coconut husks, is biodegradable, and is a 100% renewable resource. It also contains traces of Magnesium and Calcium that contribute to the overall growth of mushrooms.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\" data-mce-fragment=\"1\"\u003eCoco coir is widely used in mushroom cultivation due to its microbial resistance, ability to retain moisture, and nutrient composition. It is primarily used as a casing layer in monotubs or as a substrate additive. However, it can also be used in garden beds as an alternative to peat moss.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/span\u003e\u003cstrong\u003eMakes ~1 gallon (3-4 Liters) of coco coir once rehydrated\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eHow to use:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli style=\"font-weight: 400;\" data-mce-fragment=\"1\"\u003e\n\u003cb data-mce-fragment=\"1\"\u003eAs a casing layer:\u003c\/b\u003e\u003cspan style=\"font-weight: 400;\" data-mce-fragment=\"1\"\u003e Coco coir should only be added to fully-colonized substrate covered in mycelium with well-developed primordia and\/or pins beginning to form. Only a thin layer of coco coir (1\/4 to 1\/2 inch) is necessary.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli style=\"font-weight: 400;\" data-mce-fragment=\"1\"\u003e\n\u003cb data-mce-fragment=\"1\"\u003eIn bulk substrate:\u003c\/b\u003e\u003cspan style=\"font-weight: 400;\" data-mce-fragment=\"1\"\u003e After rehydration (see instructions below) combine coco coir with other ingredients to your bulk recipe at the desired quantity. Pasteurize or sterilize after combination.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003ci data-mce-fragment=\"1\"\u003e\u003cspan style=\"font-weight: 400;\" data-mce-fragment=\"1\"\u003eIMPORTANT: Dehydrated coco coir must be rehydrated and pasteurized before use. (Scroll down for complete instructions.)\u003c\/span\u003e\u003c\/i\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eAdditional search terms: Coconut, coir, coconut coir, cocoa coir, casing, casing layer\u003cbr\u003e\u003c\/p\u003e","brand":"North Spore","offers":[{"title":"Default Title","offer_id":52325731270951,"sku":"EQUIP-MYCOCOCO","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0951\/9693\/8535\/files\/cultivating-tools-myco-coco-compressed-coco-coir-substrate-casing-layer-30805878145126.jpg?v=1791996946"},{"product_id":"mycostraw","title":"MycoStraw","description":"\u003cp\u003eMycoStraw offers outdoor growers a foundational substrate for cultivating various mushroom species directly within garden beds, raised beds, or shaded outdoor spaces. This pre-shredded straw provides an ideal medium to establish thriving mushroom patches.\u003c\/p\u003e\u003cp\u003eSpecifically designed for robust outdoor varieties such as Wine Cap mushrooms, MycoStraw facilitates strong mycelial growth. Its pre-shredded consistency ensures readiness for immediate inoculation with sawdust spawn.\u003c\/p\u003e\u003cp\u003eFor optimal results, pasteurization of the MycoStraw is recommended prior to inoculation. This crucial step prepares the substrate, minimizing contaminants and promoting vigorous mushroom development in your garden.\u003c\/p\u003e\u003cp\u003eIntegrating MycoStraw into your outdoor growing system supports sustainable practices and expands your garden's productivity. Cultivate delicious and fresh mushrooms with confidence.\u003c\/p\u003e\u003cp\u003eNorth Spore, founded by mycologists, provides cultivation essentials backed by expertise. MycoStraw aligns with our commitment to accessible and successful mushroom growing for all.\u003c\/p\u003e\u003cp\u003eBegin enhancing your outdoor growing experience with MycoStraw, the preferred substrate for reliable garden mushroom cultivation.\u003c\/p\u003e","brand":"North Spore","offers":[{"title":"Default Title","offer_id":52325735104807,"sku":"STRAW-10L","price":24.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0951\/9693\/8535\/files\/sawdust-spawn-mycostraw-1202701249.png?v=1791997002"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0951\/9693\/8535\/collections\/cultivation-equipment-bulk-organic-soy-hull-pellets-for-mushroom-cultivation-29606175146086.jpg?v=1792542170","url":"https:\/\/4kbowen.com\/collections\/bulk-mushroom-substrate.oembed","provider":"4K Bowen","version":"1.0","type":"link"}