{"product_id":"sterilized-rye-grain-spawn-bags-1-lb","title":"Sterilized Premium Rye Grain Spawn Bags, 1 lb – Injection Port \u0026 0.2 µm Filter","description":"\u003cp\u003e\u003cstrong\u003eLab-sterilized rye grain spawn, ready to inoculate.\u003c\/strong\u003e Each 1 lb bag holds premium, triple-washed rye berries hydrated with our process that reduces burst kernels, then autoclave-sterilized and sealed with a 0.2 µm filter patch and a self-healing injection port.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1, 2, 3 or 4 × 1 lb sterilized rye grain spawn bags (choose pack size)\u003c\/li\u003e\n\u003cli\u003eSterile indicator strip and batch tracking on every bag\u003c\/li\u003e\n\u003cli\u003eOne glove pack (nitrile gloves and alcohol prep pads) per order\u003c\/li\u003e\n\u003cli\u003eStep-by-step instructions and a FunGuy sticker\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLive mushroom culture is sold separately.\u003c\/p\u003e\n\n\u003ch3\u003eHow It Works\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eSanitize:\u003c\/strong\u003e Glove up and wipe the injection port with an alcohol pad.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInoculate:\u003c\/strong\u003e Inject 3–5 cc of liquid culture per bag.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColonize:\u003c\/strong\u003e Store dark at 75–80°F. Growth usually shows in 7–14 days, and the bag is fully colonized in about 2–3 weeks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse your spawn:\u003c\/strong\u003e Mix the colonized grain into bulk substrate (CVG for many species, hardwood sawdust or logs for shiitake and lion's mane), or use it for grain-to-grain transfers.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eTimeline\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFirst visible growth: 7–14 days\u003c\/li\u003e\n\u003cli\u003eFull colonization: about 2–3 weeks, depending on species\u003c\/li\u003e\n\u003cli\u003eFrom inoculation to harvest, a full grow with our substrate takes about 3–5 weeks\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIdeal Conditions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e75–80°F, dark, filter patch uncovered\u003c\/li\u003e\n\u003cli\u003eHandle the bag as little as possible while it colonizes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eYield Expectations\u003c\/h3\u003e\n\u003cp\u003eGrain spawn is the \"seed\" for a bigger grow, so yield depends on what you spawn it into. Our kits use 2 lb of grain per 4.5 lb of substrate: pair 2 bags with our 4.5 lb \u003ca href=\"\/products\/pasteurized-mushroom-substrate-bag\"\u003ePasteurized Substrate Bag\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhich species can I grow?\u003c\/strong\u003e Rye grain is a universal spawn medium that works with a wide range of mushroom species.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs a culture included?\u003c\/strong\u003e No. Bring your own liquid culture.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow long can I store un-inoculated bags?\u003c\/strong\u003e Use them within 2 weeks for best results, or up to 4 weeks stored cool and dark.\u003c\/p\u003e\n\u003ch3\u003e100% Success Coverage\u003c\/h3\u003e\n\u003cp\u003eEvery FunGuy kit is made in our Rhode Island lab and backed by our 100% Success Coverage for 30 days. If your kit arrives contaminated, send us a photo and we'll replace it free of charge.\u003c\/p\u003e\n\u003cp\u003eFull guide: \u003ca href=\"\/pages\/how-to-grow-mushrooms\"\u003eGrowing Guides\u003c\/a\u003e.\u003c\/p\u003e","brand":"FunGuy Grow Kits","offers":[{"title":"1 PACK","offer_id":45893708611899,"sku":"GNBGS1LB1PK","price":9.95,"currency_code":"USD","in_stock":true},{"title":"2 PACK","offer_id":45893708644667,"sku":"GNBGS1LB2PK","price":17.95,"currency_code":"USD","in_stock":true},{"title":"3 PACK","offer_id":45893708677435,"sku":"GNBGS1LB3PK","price":22.95,"currency_code":"USD","in_stock":true},{"title":"4 PACK","offer_id":45893708710203,"sku":"GNBGS1LB4PK","price":28.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0798\/1855\/5707\/files\/MainPhoto_406b2d23-c7a3-4c1b-ae4f-b6130b3ff8cd.png?v=1746227579","url":"https:\/\/funguykits.com\/products\/sterilized-rye-grain-spawn-bags-1-lb","provider":"FunGuy Grow Kits","version":"1.0","type":"link"}