{"title":"CVG \u0026 Coco Coir Mushroom Substrate","description":"\u003cp\u003eCoco coir, vermiculite and gypsum (CVG) is the classic bulk substrate for monotub and BagTek grows. Buy it ready to use in our sterilised CVG substrate bags and \u003ca href=\"https:\/\/sporesupplies.co.uk\/collections\/monotub-grow-kits\" title=\"Monotub Mushroom Grow Kits \u0026amp; Monotub Refills\"\u003emonotub refill bundles\u003c\/a\u003e, or mix your own with our 650g coco coir bricks, vermiculite and gypsum. We test field capacity on every batch of CVG and sterilise each bag thoroughly before shipping it with next day UK delivery.\u003c\/p\u003e","products":[{"product_id":"cvg-substrate","title":"Sterilised CVG Mushroom Substrate Bag","description":"\u003cp\u003e\u003cstrong\u003eCVG substrate\u003c\/strong\u003e bags are ideal for growing \u003cstrong\u003eexotic and functional mushroom species\u003c\/strong\u003e. This classic tek mix of \u003ca href=\"https:\/\/sporesupplies.co.uk\/products\/coco-coir-brick-650g\" title=\"650g Coco Coir Brick For Mushroom Substrate\" target=\"_blank\"\u003ecoco coir\u003c\/a\u003e\u003cstrong\u003e, vermiculite and \u003c\/strong\u003e\u003ca href=\"https:\/\/sporesupplies.co.uk\/products\/gypsum-500g\" title=\"500g Mushroom-Grade Gypsum\" target=\"_blank\"\u003egypsum\u003c\/a\u003e will create the perfect environment for your mycelium. We test optimal field capacity on every batch, so your fungi strains will enjoy a perfect moisture level that \u003cstrong\u003eboosts yields\u003c\/strong\u003e. \u003c\/p\u003e\n\u003cp\u003eAll of our \u003ca href=\"https:\/\/sporesupplies.co.uk\/collections\/sterile-mushroom-substrates\" title=\"Sterile Mushroom Substrates\" target=\"_blank\"\u003esubstrates\u003c\/a\u003e are \u003cstrong\u003esterilised in our medical-grade autoclave for 1 hour and 30 minutes\u003c\/strong\u003e, with at least a pressure of 15 PSI. This gives our blocks enough time at a minimum of \u003cstrong\u003e121ºC\u003c\/strong\u003e to reach the centre of the bag, ensuring all \u003cstrong\u003emicro-organisms are killed off\u003c\/strong\u003e. We then open the autoclave inside our cleanroom and heat seal the \u003ca href=\"https:\/\/sporesupplies.co.uk\/collections\/autoclavable-mushroom-grow-bags\" title=\"Autoclavable Mushroom Grow Bags\" target=\"_blank\"\u003emushroom grow bag\u003c\/a\u003e in front of a \u003ca href=\"https:\/\/sporesupplies.co.uk\/products\/large-laminar-flow-hood-420x330mm-16-5x13\" title=\"Laminar Flow Hood For Mycology work\" target=\"_blank\"\u003elaminar flow hood\u003c\/a\u003e to stop any contaminants getting in.   \u003c\/p\u003e","brand":"Spore Supplies","offers":[{"title":"2KG","offer_id":54875945501050,"sku":"SS-SCVG2KG","price":18.99,"currency_code":"GBP","in_stock":true},{"title":"3KG","offer_id":54875945533818,"sku":"SS-SCVG3KG","price":25.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/9843\/4352\/files\/sporesupplies3kgcvgsubstrate.jpg?v=1752531677"},{"product_id":"coco-coir-brick-650g","title":"650g Coco Coir Brick For Mushroom Substrate","description":"\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-weight: 400;\"\u003eWant to have a crack at your own \u003cstrong\u003es\u003c\/strong\u003e\u003c\/span\u003e\u003cb data-mce-fragment=\"1\"\u003eubstrate making\u003c\/b\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-weight: 400;\"\u003e? This coco coir brick is the \u003c\/span\u003emain ingredient in our \u003ca title=\"CVG Substrate For Mushroom Growing\" href=\"https:\/\/sporesupplies.co.uk\/products\/cvg-substrate\"\u003eCVG\u003c\/a\u003e mix\u003cspan data-mce-fragment=\"1\" style=\"font-weight: 400;\"\u003e, and with a pairing of vermiculite and gypsum, you’ll be able to grow your favourite \u003c\/span\u003e\u003cb data-mce-fragment=\"1\"\u003eexotic and functional mushroom strains \u003c\/b\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-weight: 400;\"\u003ewith ease. \u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003e\u003cstrong\u003e\u003cspan data-mce-fragment=\"1\"\u003eFeatures:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\" style=\"font-weight: 400;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-weight: 400;\"\u003eOrganic Coco Coir\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\" style=\"font-weight: 400;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-weight: 400;\"\u003eApproximately 650g Per Brick\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\" style=\"font-weight: 400;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-weight: 400;\"\u003eHolds Up To 9 Litres Of Water\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\" style=\"font-weight: 400;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-weight: 400;\"\u003e100% Biodegradable\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-weight: 400;\"\u003eTo use this coco coir brick at home, add it into a large bucket with \u003c\/span\u003e4.35 litres of\u003cb data-mce-fragment=\"1\"\u003e boiled water, \u003c\/b\u003e10.5 litres of\u003cb data-mce-fragment=\"1\"\u003e vermiculite \u003c\/b\u003eand 65 grams of\u003cb data-mce-fragment=\"1\"\u003e gypsum\u003c\/b\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-weight: 400;\"\u003e, before \u003c\/span\u003e\u003cb data-mce-fragment=\"1\"\u003estirring thoroughly\u003c\/b\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-weight: 400;\"\u003e into an even blend. This classic tek CVG mix will make a substrate with an \u003c\/span\u003e\u003cb data-mce-fragment=\"1\"\u003eoptimal field capacity\u003c\/b\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-weight: 400;\"\u003e (squeeze to test) that’ll \u003c\/span\u003e\u003cb data-mce-fragment=\"1\"\u003eboost yields\u003c\/b\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-weight: 400;\"\u003e. \u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eContains:\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\" style=\"font-weight: 400;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-weight: 400;\"\u003eCoco Coir Brick 650g (Approximately)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Spore Supplies","offers":[{"title":"Default Title","offer_id":45300104298800,"sku":"SS-CCB650G","price":6.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/9843\/4352\/files\/coirbrick650.jpg?v=1752529624"},{"product_id":"gypsum-500g","title":"500g Gypsum For Mushroom Cultivation","description":"\u003cp data-mce-fragment=\"1\"\u003e\u003cspan style=\"font-weight: 400;\" data-mce-fragment=\"1\"\u003eIf you’re looking to \u003c\/span\u003e\u003cb data-mce-fragment=\"1\"\u003emake your own substrates\u003c\/b\u003e\u003cspan style=\"font-weight: 400;\" data-mce-fragment=\"1\"\u003e, agricultural gypsum is a key component for any CVG blend. Just mix it with \u003cstrong\u003ec\u003c\/strong\u003e\u003c\/span\u003e\u003cb data-mce-fragment=\"1\"\u003eoco coir \u003c\/b\u003eand\u003cb data-mce-fragment=\"1\"\u003e vermiculite\u003c\/b\u003e\u003cspan style=\"font-weight: 400;\" data-mce-fragment=\"1\"\u003e and you’ve got a substrate that’ll help you grow your favourite \u003c\/span\u003e\u003cb data-mce-fragment=\"1\"\u003eexotic and functional mushroom species\u003c\/b\u003e\u003cspan style=\"font-weight: 400;\" data-mce-fragment=\"1\"\u003e.  \u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003e\u003cstrong\u003e\u003cspan data-mce-fragment=\"1\"\u003eFeatures:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli style=\"font-weight: 400;\" data-mce-fragment=\"1\"\u003e\u003cspan style=\"font-weight: 400;\" data-mce-fragment=\"1\"\u003eGypsum (Calcium Sulphate Dihydrate)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"font-weight: 400;\" data-mce-fragment=\"1\"\u003e\u003cspan style=\"font-weight: 400;\" data-mce-fragment=\"1\"\u003eFertiliser-Grade \u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"font-weight: 400;\" data-mce-fragment=\"1\"\u003e\u003cspan style=\"font-weight: 400;\" data-mce-fragment=\"1\"\u003eApproximately 500g Per Pack \u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"font-weight: 400;\" data-mce-fragment=\"1\"\u003e\u003cspan style=\"font-weight: 400;\" data-mce-fragment=\"1\"\u003eFor Substrate \u0026amp; Grain Spawn Mixes\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan style=\"font-weight: 400;\" data-mce-fragment=\"1\"\u003eTo use this gypsum pack in a \u003c\/span\u003e\u003cb data-mce-fragment=\"1\"\u003eCVG substrate\u003c\/b\u003e\u003cspan style=\"font-weight: 400;\" data-mce-fragment=\"1\"\u003e, place a 650g \u003cstrong\u003ec\u003c\/strong\u003e\u003c\/span\u003e\u003cb data-mce-fragment=\"1\"\u003eoco coir brick\u003c\/b\u003e\u003cspan style=\"font-weight: 400;\" data-mce-fragment=\"1\"\u003e into a large tub with \u003c\/span\u003e4.35 litres of\u003cb data-mce-fragment=\"1\"\u003e boiled water\u003c\/b\u003e\u003cspan style=\"font-weight: 400;\" data-mce-fragment=\"1\"\u003e and 10.5 \u003c\/span\u003elitres of\u003cb data-mce-fragment=\"1\"\u003e vermiculite\u003c\/b\u003e\u003cspan style=\"font-weight: 400;\" data-mce-fragment=\"1\"\u003e before adding roughly 65g of \u003cstrong\u003eg\u003c\/strong\u003e\u003c\/span\u003e\u003cb data-mce-fragment=\"1\"\u003eypsum\u003c\/b\u003e\u003cspan style=\"font-weight: 400;\" data-mce-fragment=\"1\"\u003e. Mix it all until evenly blended, then pop a lid on the tub until you're ready to add the substrate into a \u003c\/span\u003e\u003cb data-mce-fragment=\"1\"\u003emonotub \u003c\/b\u003eor \u003ca title=\"Spore Supplies Mushroom Growing Bags\" href=\"https:\/\/sporesupplies.co.uk\/collections\/mushroom-grow-bags\"\u003emushroom growing bag\u003c\/a\u003e\u003cspan style=\"font-weight: 400;\" data-mce-fragment=\"1\"\u003e. \u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eContains:\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli style=\"font-weight: 400;\" data-mce-fragment=\"1\"\u003e\u003cspan style=\"font-weight: 400;\" data-mce-fragment=\"1\"\u003e500g Agricultural Gypsum (Approximately)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Spore Supplies","offers":[{"title":"Default Title","offer_id":45300112097584,"sku":"SS-GYPSM500G","price":2.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/9843\/4352\/files\/sporesuppliesgypsum.jpg?v=1752531612"},{"product_id":"10-x-cvg-3kg-substrate-bags-bulk-bundle","title":"10 x CVG 3kg Mushroom Substrate Bags Bulk Bundle","description":"\u003cp dir=\"ltr\"\u003eIf you’re looking for bulk CVG mushroom substrate, we have you covered. Our \u003cstrong\u003e10 x CVG 3kg Mushroom Substrate Bulk Bundle\u003c\/strong\u003e will sort you out. Blended with coco coir, vermiculite and gypsum, each bag is mixed well and hydrated before being \u003cstrong\u003etested for optimal field capacity\u003c\/strong\u003e. Once ready, the substrate is placed into large autoclavable \u003cstrong\u003eUnicorn grow bags\u003c\/strong\u003e. This substrate mix is perfect for growing \u003cstrong\u003eexotic and functional mushroom species\u003c\/strong\u003e and you can add up to 1.5kg of colonised \u003ca href=\"https:\/\/sporesupplies.co.uk\/collections\/sterilised-grain-bags\" title=\"Sterile Grain For Mushroom Spawn Growing\"\u003egrain\u003c\/a\u003e spawn to each. \u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eFeatures:\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eCVG Substrate Bulk Bundle\u003c\/span\u003e\u003c\/li\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eCoco Coir, Vermiculite, Gypsum\u003c\/span\u003e\u003c\/li\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eAdd 1.5kg Of Spawn Per Bag\u003c\/span\u003e\u003c\/li\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eXLS-A Unicorn Bags\u003c\/span\u003e\u003c\/li\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eFor Spawn To Substrate Growth\u003c\/span\u003e\u003c\/li\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eAutoclaved For 1 Hour 30 Minutes\u003c\/span\u003e\u003c\/li\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eSealed In Cleanroom\u003c\/span\u003e\u003c\/li\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003e'How To' Guide Included\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eAll of our substrates are \u003c\/span\u003e\u003cspan\u003esterilised in our medical-grade autoclave for 1 hour and 30 minutes\u003c\/span\u003e\u003cspan\u003e, with at least a pressure of 15 PSI. This gives our blocks enough time at a minimum of \u003c\/span\u003e\u003cspan\u003e121º\u003c\/span\u003e\u003cspan\u003e to reach the centre of the bag, ensuring all \u003c\/span\u003e\u003cspan\u003emicro-organisms are killed off\u003c\/span\u003e\u003cspan\u003e. We then open the autoclave inside our cleanroom and heat seal the mushroom grow bags in front of a laminar flow hood to stop any contaminants from getting in.   \u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eTo get started with these kits\u003c\/span\u003e\u003cspan\u003e (using aseptic technique) cut along the top of each bag and add up to 1.5kg of colonised grain spawn per bag inside. Then seal the blocks back up using either a zip tie or heat sealer. To finish off, mix the spawn and substrate evenly before popping your blocks in ideal growing conditions for colonisation. From there you can simply leave the rest of the work to the mycelium! Check out our\u003c\/span\u003e\u003ca href=\"https:\/\/sporesupplies.co.uk\/blogs\/how-to-guides\/how-to-use-bulk-substrate\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eHow To Use Your Substrate\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e guide for more detailed advice.\u003c\/span\u003e\u003cspan\u003e  \u003c\/span\u003e\u003cspan\u003e  \u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eContains:\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003e10 x 3kg CVG Substrate In XLS-A Unicorn Bags\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!----\u003e","brand":"Spore Supplies","offers":[{"title":"Default Title","offer_id":48846521336112,"sku":"SS-S3KGCVGX10","price":239.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/9843\/4352\/files\/10_x_CVG_3kg_Substrate_Bags_Bulk_Bundle2.png?v=1749319458"},{"product_id":"millet-cvg-grow-kit","title":"Millet \u0026 CVG BagTek Bundle – 45L Monotub Refill","description":"\u003cp\u003eDo you want to grow your own exotic and functional mushrooms\u003cstrong\u003e? \u003c\/strong\u003eGrab this Millet \u0026amp; CVG BagTek Bundle – 45L Monotub Refill to get yourself started. Each kit contains a 1.5kg\u003cstrong\u003e \u003c\/strong\u003e\u003ca href=\"https:\/\/sporesupplies.co.uk\/products\/millet-grain-spawn\" title=\"Sterile Millet Grain Bag For DIY Grain Spawn\" target=\"_blank\"\u003esterile bag of millet grain\u003c\/a\u003e\u003cstrong\u003e, \u003c\/strong\u003ea 70% isopropyl wipe and a 3kg\u003cstrong\u003e \u003c\/strong\u003e\u003ca href=\"https:\/\/sporesupplies.co.uk\/products\/cvg-substrate\" title=\"Sterile CVG Mushroom Substrate\" target=\"_blank\"\u003eCVG substrate blend\u003c\/a\u003e. Plus, you’ll get them\u003cstrong\u003e cheaper together \u003c\/strong\u003e- so just choose your \u003ca href=\"https:\/\/sporesupplies.co.uk\/collections\/liquid-cultures\" title=\"Spore Supplies Liquid Culture Mushroom Genetics\"\u003egenetics\u003c\/a\u003e (\u003cstrong\u003esold separately\u003c\/strong\u003e) and you’re all good to go! \u003c\/p\u003e\n\u003cp\u003eAll of our substrates and grains are sterilised in our medical-grade autoclave for 2 hours and 30 minutes (1 hour 30 for sub), with a pressure of at least 15 PSI. This gives our blocks enough time at a minimum of 121ºC to reach the centre of the bag, ensuring all \u003cstrong\u003emicroorganisms are killed off\u003c\/strong\u003e. We then open the autoclave inside our cleanroom and heat seal the \u003ca href=\"https:\/\/sporesupplies.co.uk\/collections\/autoclavable-mushroom-grow-bags\" title=\"Autoclavable Mushroom Grow Bags\" target=\"_blank\"\u003emushroom grow bag\u003c\/a\u003e in front of a \u003ca href=\"https:\/\/sporesupplies.co.uk\/products\/large-laminar-flow-hood-420x330mm-16-5x13\" title=\"Laminar Flow Hood For Mycology Work\" target=\"_blank\"\u003elaminar flow hood\u003c\/a\u003e to stop any contaminants getting in. \u003c\/p\u003e\n\u003cp\u003eWant to know if this will work with your monotub? check out our \u003ca href=\"https:\/\/sporesupplies.co.uk\/pages\/monotub-grain-substrate-calculator\" title=\"Monotub Spawn \u0026amp; Substrate Volume Calculator\"\u003espawn \u0026amp; substrate calculator\u003c\/a\u003e.\u003c\/p\u003e\n\u003c!----\u003e","brand":"Spore Supplies","offers":[{"title":"Default Title","offer_id":48986926874928,"sku":"SS-SMILLCVG45LR","price":34.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/9843\/4352\/files\/IMG_4150.jpg?v=1753289078"},{"product_id":"rye-cvg-mushroom-grow-kit-bundle","title":"Rye \u0026 CVG BagTek Bundle – 45L Monotub Refill","description":"\u003cp\u003eLooking for a cost-effective way to get bigger mushroom yields? Our Rye \u0026amp; CVG BagTek Bundle – 45L Monotub Refill has you covered. This kit includes a 1.5kg bag of \u003ca href=\"https:\/\/sporesupplies.co.uk\/products\/rye-1-5kg-sterilised-grain-bag\" title=\"Sterile Rye Grain Bag For DIY Grain Spawn\" target=\"_blank\"\u003esterile rye grain\u003c\/a\u003e, a 3kg bag of \u003ca href=\"https:\/\/sporesupplies.co.uk\/products\/cvg-substrate\" title=\"Sterile CVG Mushroom Substrate\" target=\"_blank\"\u003eCVG substrate\u003c\/a\u003e and a 70% isopropyl wipe and they’re cheaper as part of this kit. You can grow almost any strain of fungi using this setup, so just grab a spore syringe or \u003ca href=\"https:\/\/sporesupplies.co.uk\/collections\/liquid-cultures\" title=\"Liquid Mushroom Mycelium Cultures\" target=\"_blank\"\u003eliquid culture\u003c\/a\u003e (\u003cstrong\u003eavailable separately\u003c\/strong\u003e) to get started and you’re all set.\u003c\/p\u003e\n\u003cp\u003eAll of our substrates and grains are sterilised in our medical-grade autoclave for 2 hours and 30 minutes (1 hour 30 for sub), with a pressure of at least 15 PSI. This gives our blocks enough time at a minimum of 121º to reach the centre of the bag, ensuring all microorganisms are killed off. We then open the autoclave inside our cleanroom and heat seal the \u003ca href=\"https:\/\/sporesupplies.co.uk\/collections\/autoclavable-mushroom-grow-bags\" title=\"Autoclavable Mushroom Grow Bags\" target=\"_blank\"\u003emushroom grow bag\u003c\/a\u003e in front of a \u003ca href=\"https:\/\/sporesupplies.co.uk\/products\/large-laminar-flow-hood-420x330mm-16-5x13\" title=\"Laminar Flow Hood For Mycology Work\" target=\"_blank\"\u003elaminar flow hood\u003c\/a\u003e to stop any contaminants from getting in.   \u003c\/p\u003e\n\u003cp\u003eWant to know if this will work with your monotub? check out our \u003ca href=\"https:\/\/sporesupplies.co.uk\/pages\/monotub-grain-substrate-calculator\" title=\"Monotub Spawn \u0026amp; Substrate Volume Calculator\"\u003espawn \u0026amp; substrate calculator\u003c\/a\u003e.\u003c\/p\u003e\n\u003c!----\u003e","brand":"Spore Supplies","offers":[{"title":"Default Title","offer_id":48995214033200,"sku":"SS-SRYECVG45LR","price":35.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/9843\/4352\/files\/IMG_4148.jpg?v=1753289062"},{"product_id":"vermiculite-for-mushroom-substrate","title":"Vermiculite For Mushroom Substrate","description":"\u003cp dir=\"ltr\"\u003e\u003cspan\u003eVermiculite is a natural mineral that boasts huge water and nutrient retention properties. This makes it ideal as a soil or mushroom substrate additive, where it can boost yields, like it does in our \u003c\/span\u003e\u003ca href=\"https:\/\/sporesupplies.co.uk\/products\/cvg-substrate\"\u003e\u003cspan\u003esterile CVG bags\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e. If you’d like to make your own CVG mix, you can pair this fine-grade vermiculite with coco coir, gypsum, and \u003c\/span\u003e\u003ca href=\"https:\/\/sporesupplies.co.uk\/collections\/mushroom-substrate-bags\"\u003e\u003cspan\u003emushroom substrate grow bags\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e to get started. Need more? \u003c\/span\u003e\u003ca href=\"https:\/\/sporesupplies.co.uk\/pages\/contact-us\"\u003e\u003cspan\u003eContact us\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e for wholesale volumes. \u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eFine-Grade Vermiculite\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003e50 \u0026amp; 100 Litre Volumes \u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\n\u003cspan\u003eFor \u003c\/span\u003e\u003ca href=\"https:\/\/sporesupplies.co.uk\/collections\/sterile-mushroom-substrates\"\u003e\u003cspan\u003eMushroom Substrates\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003ePairs With \u003ca href=\"https:\/\/sporesupplies.co.uk\/products\/coco-coir-brick-650g\"\u003eCoco Coir\u003c\/a\u003e \u0026amp; \u003ca href=\"https:\/\/sporesupplies.co.uk\/products\/gypsum-500g\"\u003eGypsum\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Spore Supplies","offers":[{"title":"50","offer_id":55171622666618,"sku":"SS-VRM50","price":16.99,"currency_code":"GBP","in_stock":false},{"title":"100","offer_id":55171622699386,"sku":"SS-VRM100","price":30.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/9843\/4352\/files\/vermiculite_sack.jpg?v=1768914011"},{"product_id":"milo-cvg-mushroom-grow-kit","title":"Milo \u0026 CVG BagTek Bundle – 45L Monotub Refill","description":"\u003cp\u003eOur Milo \u0026amp; CVG BagTek Bundle – 45L Monotub Refill is here to help you maximise on savings by stocking up on a 1.5kg \u003ca href=\"https:\/\/sporesupplies.co.uk\/products\/sterile-milo-grain-bag\"\u003esterile milo\u003c\/a\u003e and 3kg \u003ca href=\"https:\/\/sporesupplies.co.uk\/products\/cvg-substrate\"\u003esterile CVG bag\u003c\/a\u003e at the same time! You’ll also get a couple of 70% isopropyl wipes to help keep everything clean, so just buy your spore or \u003ca href=\"https:\/\/sporesupplies.co.uk\/collections\/liquid-cultures\"\u003eliquid culture syringe\u003c\/a\u003e separately, and you’re all set. \u003c\/p\u003e\n\u003cp\u003eOur \u003ca href=\"https:\/\/sporesupplies.co.uk\/collections\/sterile-mushroom-substrates\" title=\"Sterile Mushroom Substrate\"\u003emushroom substrates\u003c\/a\u003e and \u003ca href=\"https:\/\/sporesupplies.co.uk\/collections\/sterilised-grain-bags\"\u003egrain bags\u003c\/a\u003e are sterilised inside a medical-grade autoclave at a temperature of at least 121º to kill off all contamination. We then seal the bags inside our clean room to keep contamination out until the bags are ready to be inoculated with mushroom genetics. This bundle is covered by our 100% sterile magic myc guarantee. \u003c\/p\u003e\n\u003cp\u003eWant to know if this will work with your monotub? check out our \u003ca href=\"https:\/\/sporesupplies.co.uk\/pages\/monotub-grain-substrate-calculator\" title=\"Monotub Spawn \u0026amp; Substrate Volume Calculator\"\u003espawn \u0026amp; substrate calculator\u003c\/a\u003e.\u003c\/p\u003e","brand":"Spore Supplies","offers":[{"title":"Default Title","offer_id":55173732893050,"sku":"SS-SMILOCVG45LR","price":34.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/9843\/4352\/files\/milocvgbundle.jpg?v=1749319409"},{"product_id":"monotub-mushroom-grow-kit-cvg-grain","title":"Monotub Mushroom Grow Kit – CVG \u0026 Grain","description":"\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe Monotub Mushroom Grow Kit allows you to start your first monotub grow with ease. This bundle includes an official \u003c\/span\u003e\u003ca href=\"https:\/\/sporesupplies.co.uk\/products\/inflatable-mushroom-monotub-kit-by-boomer-shroomer\"\u003e\u003cspan\u003eBoomer Shroomer inflatable monotub\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e, a \u003c\/span\u003e\u003ca href=\"https:\/\/sporesupplies.co.uk\/products\/cvg-substrate\"\u003e\u003cspan\u003e2kg sterile CVG bag\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e, and your choice of 1kg \u003c\/span\u003e\u003ca href=\"https:\/\/sporesupplies.co.uk\/collections\/sterilised-grain-bags\"\u003e\u003cspan\u003esterile grain bag\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e. This creates an optimal 1:2 grain-to-sub ratio inside your monotub, which is ideal for growing exotic mushrooms. An isopropyl wipe is included with each bag to help you with the inoculation process, but you can also add an \u003c\/span\u003e\u003ca href=\"https:\/\/sporesupplies.co.uk\/products\/aseptic-technique-starter-kit\"\u003e\u003cspan\u003easeptic technique kit\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e for best results. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eYou’ll need to purchase your own spores or \u003c\/span\u003e\u003ca href=\"https:\/\/sporesupplies.co.uk\/collections\/liquid-cultures\"\u003e\u003cspan\u003eliquid culture\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e to start using this monotub grow kit. But don’t worry about contamination! Our grain and substrate bags are included in our 100% sterile guarantee. Looking to replenish your used monotub instead? Check out our \u003c\/span\u003e\u003ca href=\"https:\/\/sporesupplies.co.uk\/pages\/monotub-grain-substrate-calculator\"\u003e\u003cspan\u003emonotub calculator\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e and find the right \u003c\/span\u003e\u003ca href=\"https:\/\/sporesupplies.co.uk\/collections\/all-grow-kits\"\u003e\u003cspan\u003emonotub refill kit\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e for you. \u003c\/span\u003e\u003c\/p\u003e","brand":"Spore Supplies","offers":[{"title":"1kg Millet","offer_id":57143697113466,"sku":null,"price":44.99,"currency_code":"GBP","in_stock":true},{"title":"1kg Milo","offer_id":57143751803258,"sku":null,"price":44.99,"currency_code":"GBP","in_stock":true},{"title":"1kg Popcorn","offer_id":57143751836026,"sku":null,"price":49.99,"currency_code":"GBP","in_stock":true},{"title":"1kg Rye","offer_id":57143751868794,"sku":null,"price":49.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/9843\/4352\/files\/cvg-millet-boomer-shroomer-monotub-kit-spore-supplies.jpg?v=1785833252"}],"url":"https:\/\/sporesupplies.co.uk\/collections\/cvg-coco-coir-mushroom-substrate.oembed","provider":"Spore Supplies","version":"1.0","type":"link"}