{"title":"Mushroom Spawn Bags","description":"","products":[{"product_id":"unicorn-4t-grain-spawn-bag","title":"Unicorn 4T — Mushroom Grain Spawn Bag (Small)","description":"\u003cp\u003eThe Unicorn 4T is the standard grain spawn bag for batches up to 1kg — compact, reliable, and the bag most UK growers reach for first. Whether you're running rye, oat grain or wheat berries, it handles autoclave and pressure cooker cycles cleanly with no warping or seal failure. Made in the USA since 1990 by Unicorn Bags LLC, the industry's most trusted name in mushroom cultivation bags.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFilter:\u003c\/strong\u003e 0.2 micron T filter — tight filtration for grain spawn, minimises contamination risk during colonisation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 400g – 1kg of grain\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 4\" × 3\" × 18\"\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 3.0 mil polypropylene — autoclave and pressure cooker safe at 121°C \/ 15 PSI\u003c\/li\u003e\n  \u003cli\u003eSide-gusseted, reinforced bottom seal\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy growers choose the 4T\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eThe 0.2 micron T filter is the tightest in the Unicorn spawn range — ideal when you want to minimise contamination pressure on smaller batches\u003c\/li\u003e\n  \u003cli\u003eCompact footprint means you can fit more bags per autoclave run\u003c\/li\u003e\n  \u003cli\u003ePerfect for hobbyists, small lab setups, and anyone working in the 1kg grain range\u003c\/li\u003e\n  \u003cli\u003eThe same bag we've been running our own grain spawn in since 2021\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eReady to scale up? The \u003ca href=\"\/products\/unicorn-10t-grain-spawn-bag\"\u003e10T\u003c\/a\u003e holds up to 1.8kg, the \u003ca href=\"\/products\/unicorn-3t-mushroom-grain-spawn-bag-large\"\u003e3T\u003c\/a\u003e up to 3kg, and the \u003ca href=\"\/products\/unicorn-xlst-mushroom-grain-spawn-bag-extra-large\"\u003eXLST\u003c\/a\u003e up to 6.8kg — more grain per run, same trusted 0.2 micron T filter.\u003c\/p\u003e\n\n\u003cp\u003eNeed substrate bags instead? See our \u003ca href=\"\/collections\/mushroom-fruiting-bags\"\u003efruiting bag range\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003eIn stock at our Glasgow warehouse. Dispatched same or next day.\u003c\/p\u003e","brand":"Unicorn Bags","offers":[{"title":"10 Bags","offer_id":64888385962333,"sku":"UB-4T-10","price":13.5,"currency_code":"GBP","in_stock":true},{"title":"100 Bags","offer_id":64888386060637,"sku":"UB-4T-100","price":72.0,"currency_code":"GBP","in_stock":true},{"title":"1000 (Full Box)","offer_id":64948558856541,"sku":"UB-4T-1000","price":550.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1067\/7010\/4669\/files\/74774F8B-3E05-4C7E-88BD-49F480858F8B.jpg?v=1781358266"},{"product_id":"unicorn-10t-grain-spawn-bag","title":"Unicorn 10T — Mushroom Grain Spawn Bag (Medium)","description":"\u003cp\u003eThe Unicorn 10T is the workhorse grain spawn bag — and for most growers running regular batches, it's the one they end up sticking with. At up to 1.8kg per bag you get more spawn per run with fewer bags to seal, load, and shake out. The same 0.2 micron T filter as the 4T, scaled up. Made in the USA since 1990 by Unicorn Bags LLC, the industry's most trusted name in mushroom cultivation bags.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFilter:\u003c\/strong\u003e 0.2 micron T filter — tight filtration that keeps contamination pressure low through the full colonisation period\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e Up to 1.8kg of grain\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 5\" × 4\" × 18\"\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 3.0 mil polypropylene — autoclave and pressure cooker safe at 121°C \/ 15 PSI\u003c\/li\u003e\n  \u003cli\u003eSide-gusseted, reinforced bottom seal\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy growers choose the 10T\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eThe most popular grain spawn bag size in the Unicorn range — fewer bags per batch means less handling, faster workflow\u003c\/li\u003e\n  \u003cli\u003eSame trusted 0.2 micron T filter as the 4T with up to 80% more grain capacity per bag\u003c\/li\u003e\n  \u003cli\u003eHandles full autoclave cycles at this weight without seal failure or warping\u003c\/li\u003e\n  \u003cli\u003eThe bag we use for our own grain spawn production — we've run thousands of these since 2021\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eNeed a smaller bag for tighter batches? The \u003ca href=\"\/products\/unicorn-4t-grain-spawn-bag\"\u003e4T\u003c\/a\u003e holds up to 1kg. Scaling up? The \u003ca href=\"\/products\/unicorn-3t-mushroom-grain-spawn-bag-large\"\u003e3T\u003c\/a\u003e (up to 3kg) and \u003ca href=\"\/products\/unicorn-xlst-mushroom-grain-spawn-bag-extra-large\"\u003eXLST\u003c\/a\u003e (up to 6.8kg) carry more grain per bag.\u003c\/p\u003e\n\n\u003cp\u003eNeed substrate bags instead? See our \u003ca href=\"\/collections\/mushroom-fruiting-bags\"\u003efruiting bag range\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003eIn stock at our Glasgow warehouse. Dispatched same or next day.\u003c\/p\u003e","brand":"Unicorn Bags","offers":[{"title":"10 Bags","offer_id":64888386093405,"sku":"UB-10T-10","price":15.0,"currency_code":"GBP","in_stock":true},{"title":"100 Bags","offer_id":64888386191709,"sku":"UB-10T-100","price":80.0,"currency_code":"GBP","in_stock":true},{"title":"1000 (Full box)","offer_id":64948558889309,"sku":"UB-10T-1000","price":600.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1067\/7010\/4669\/files\/47BBA0B2-70FD-46C6-BA47-1983BF3F9335.jpg?v=1781358522"},{"product_id":"unicorn-3t-mushroom-grain-spawn-bag-large","title":"Unicorn 3T — Mushroom Grain Spawn Bag (Large)","description":"\u003cp\u003eThe Unicorn 3T is the large grain spawn bag in the range — built for growers producing spawn in bulk. At up to 3kg of grain per bag you prep far more spawn per run with fewer bags to seal and shake out, while keeping the same tight 0.2 micron T filter that runs through the whole Unicorn spawn line. Made in the USA since 1990 by Unicorn Bags LLC, the industry's most trusted name in mushroom cultivation bags.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFilter:\u003c\/strong\u003e 0.2 micron T filter — tight filtration that keeps contamination pressure low through the full colonisation period\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e Up to 3kg of grain\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 8\" × 5\" × 19\"\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 3.0 mil polypropylene — autoclave and pressure cooker safe at 121°C \/ 15 PSI\u003c\/li\u003e\n  \u003cli\u003eSide-gusseted, reinforced bottom seal\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy growers choose the 3T\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eMore grain per bag than the 4T or 10T — fewer autoclave runs and less handling when you're scaling spawn production\u003c\/li\u003e\n  \u003cli\u003eThe same trusted 0.2 micron T filter as the rest of the Unicorn spawn range\u003c\/li\u003e\n  \u003cli\u003eHandles full autoclave cycles at this volume without seal failure or warping\u003c\/li\u003e\n  \u003cli\u003eIdeal for larger labs and commercial growers running big spawn batches\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eNeed smaller bags for tighter batches? We also stock the \u003ca href=\"\/products\/unicorn-4t-grain-spawn-bag\"\u003e4T\u003c\/a\u003e (up to 1kg) and \u003ca href=\"\/products\/unicorn-10t-grain-spawn-bag\"\u003e10T\u003c\/a\u003e (up to 1.8kg). Need even more capacity? The \u003ca href=\"\/products\/unicorn-xlst-mushroom-grain-spawn-bag-extra-large\"\u003eXLST\u003c\/a\u003e is the largest in the range.\u003c\/p\u003e\n\n\u003cp\u003eNeed substrate bags instead? See our \u003ca href=\"\/collections\/mushroom-fruiting-bags\"\u003efruiting bag range\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003eIn stock at our Glasgow warehouse. Dispatched same or next day.\u003c\/p\u003e","brand":"Unicorn Bags","offers":[{"title":"10 Bags","offer_id":64949106803037,"sku":"UB-3T-10","price":18.0,"currency_code":"GBP","in_stock":true},{"title":"100 Bags","offer_id":64949106835805,"sku":"UB-3T-100","price":90.0,"currency_code":"GBP","in_stock":true},{"title":"1000 (Full Box)","offer_id":64949106868573,"sku":"UB-3T-1000","price":650.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1067\/7010\/4669\/files\/6748A935-F988-47D8-A81C-F6F70EE46763.jpg?v=1781358789"},{"product_id":"unicorn-xlst-mushroom-grain-spawn-bag-extra-large","title":"Unicorn XLST — Mushroom Grain Spawn Bag (Extra Large)","description":"\u003cp\u003eThe Unicorn XLST is the largest grain spawn bag in the range — made for serious, high-volume spawn production. At up to 6.8kg of grain per bag, it's the fewest-bags-per-batch option for commercial labs and micro-farms, with the same 0.2 micron T filter trusted across the Unicorn spawn line. Made in the USA since 1990 by Unicorn Bags LLC, the industry's most trusted name in mushroom cultivation bags.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFilter:\u003c\/strong\u003e 0.2 micron T filter — tight filtration that keeps contamination pressure low through the full colonisation period\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e Up to 6.8kg of grain\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 10\" × 5\" × 24\"\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 3.0 mil polypropylene — autoclave and pressure cooker safe at 121°C \/ 15 PSI\u003c\/li\u003e\n  \u003cli\u003eSide-gusseted, reinforced bottom seal\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy growers choose the XLST\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eThe most grain per bag in the Unicorn spawn range — the go-to for commercial-scale spawn production\u003c\/li\u003e\n  \u003cli\u003eFewer bags to prep, seal and shake out per batch, lowering cost and handling per kilo\u003c\/li\u003e\n  \u003cli\u003eThe same trusted 0.2 micron T filter, scaled up for large grain loads\u003c\/li\u003e\n  \u003cli\u003eHandles full autoclave cycles at this volume without seal failure or warping\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eDon't need this much capacity? We also stock the \u003ca href=\"\/products\/unicorn-3t-mushroom-grain-spawn-bag-large\"\u003e3T\u003c\/a\u003e (up to 3kg), \u003ca href=\"\/products\/unicorn-10t-grain-spawn-bag\"\u003e10T\u003c\/a\u003e (up to 1.8kg) and \u003ca href=\"\/products\/unicorn-4t-grain-spawn-bag\"\u003e4T\u003c\/a\u003e (up to 1kg).\u003c\/p\u003e\n\n\u003cp\u003eNeed substrate bags instead? See our \u003ca href=\"\/collections\/mushroom-fruiting-bags\"\u003efruiting bag range\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003eIn stock at our Glasgow warehouse. Dispatched same or next day.\u003c\/p\u003e","brand":"Unicorn Bags","offers":[{"title":"10 Bags","offer_id":64949107884381,"sku":"UB-XLST-10","price":25.0,"currency_code":"GBP","in_stock":true},{"title":"100 Bags","offer_id":64949107917149,"sku":"UB-XLST-100","price":100.0,"currency_code":"GBP","in_stock":true},{"title":"500 (Full box)","offer_id":64949107949917,"sku":"UB-XLST-500","price":450.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1067\/7010\/4669\/files\/productpicssoonunicorn-nontrans.png?v=1781127757"}],"url":"https:\/\/mycorevolution.co.uk\/collections\/mushroom-spawn-bags-1.oembed","provider":"Myco Revolution","version":"1.0","type":"link"}