{"product_id":"pre-sterilised-grain-spawn-bags","title":"Pre-Sterilised Grain Spawn Bags","description":"\u003cdiv style=\"max-width: 800px; margin: 0 auto; font-family: -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif; color: #2b2b26; line-height: 1.6;\"\u003e\n\u003c!-- ============ SECTION 1: HOOK HEADLINE ============ --\u003e\n\u003ch1 style=\"font-size: 28px; font-weight: bold; color: #2f3b26; margin: 0 0 16px; line-height: 1.25;\"\u003ePre-Sterilised Grain Spawn Bags — Skip the Autoclave, Go Straight to Inoculation\u003c\/h1\u003e\n\u003c!-- ============ SECTION 2: LEAD PARAGRAPH ============ --\u003e\n\u003cp style=\"font-size: 16px; margin: 0 0 28px;\"\u003eNo pressure cooker. No autoclave cycle. No sterilising anything yourself. Our \u003cstrong\u003ePre-Sterilised Grain Spawn Bags\u003c\/strong\u003e arrive ready to inject — sterilised in a commercial autoclave, sealed with a self-healing injection port and a breathable 0.2 micron filter patch, with an isopropyl alcohol swab included in every bag so you can sanitise the port and get straight to inoculating. Choose from Millet, Organic Wheat, Organic Rye, or Organic Popcorn — the widest grain range of any pre-sterilised bag on the Australian market — in 500g, 1KG, or 2KG finish weight.\u003c\/p\u003e\n\u003c!-- ============ SECTION 3: GRAIN OPTIONS GRID ============ --\u003e\n\u003ch2 style=\"font-size: 22px; font-weight: bold; color: #2f3b26; margin: 0 0 16px; border-bottom: 2px solid #dfe3d3; padding-bottom: 8px;\"\u003eChoose Your Grain\u003c\/h2\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 0 0 28px;\"\u003e\n\u003cdiv style=\"background: #f7f7f0; border: 1px solid #e3e5da; border-radius: 10px; padding: 18px;\"\u003e\n\u003ch3 style=\"font-size: 16px; font-weight: bold; margin: 0 0 8px; color: #2f3b26;\"\u003eMillet \u003cspan style=\"display: inline-block; background: #5c7a4a; color: #ffffff; font-size: 11px; font-weight: 600; letter-spacing: .03em; text-transform: uppercase; border-radius: 999px; padding: 3px 10px; margin-left: 6px; vertical-align: middle;\"\u003eBest Value\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; margin: 0; color: #4a4a42;\"\u003eSmall, even-sized grain with a high surface-area-to-volume ratio. More inoculation points per kilo means faster, more even colonisation and better spawn-to-substrate coverage than larger grains.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f7f7f0; border: 1px solid #e3e5da; border-radius: 10px; padding: 18px;\"\u003e\n\u003ch3 style=\"font-size: 16px; font-weight: bold; margin: 0 0 8px; color: #2f3b26;\"\u003eOrganic Wheat \u003cspan style=\"display: inline-block; background: #7a6a4a; color: #ffffff; font-size: 11px; font-weight: 600; letter-spacing: .03em; text-transform: uppercase; border-radius: 999px; padding: 3px 10px; margin-left: 6px; vertical-align: middle;\"\u003eClassic Choice\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; margin: 0; color: #4a4a42;\"\u003eCertified organic wheat berries — the grain most commercial AU growers build their spawn program around. Reliable hydration, consistent mycelial run, forgiving for less experienced growers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f7f7f0; border: 1px solid #e3e5da; border-radius: 10px; padding: 18px;\"\u003e\n\u003ch3 style=\"font-size: 16px; font-weight: bold; margin: 0 0 8px; color: #2f3b26;\"\u003eOrganic Rye \u003cspan style=\"display: inline-block; background: #a3572e; color: #ffffff; font-size: 11px; font-weight: 600; letter-spacing: .03em; text-transform: uppercase; border-radius: 999px; padding: 3px 10px; margin-left: 6px; vertical-align: middle;\"\u003eGrower Favourite\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; margin: 0; color: #4a4a42;\"\u003eCertified organic rye berries with a tougher hull. Slower to break down than millet or wheat, so spawn holds its structure and stays usable for longer once fully colonised — the mycologist's long-standing standard.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f7f7f0; border: 1px solid #e3e5da; border-radius: 10px; padding: 18px;\"\u003e\n\u003ch3 style=\"font-size: 16px; font-weight: bold; margin: 0 0 8px; color: #2f3b26;\"\u003eOrganic Popcorn \u003cspan style=\"display: inline-block; background: #c98a1e; color: #ffffff; font-size: 11px; font-weight: 600; letter-spacing: .03em; text-transform: uppercase; border-radius: 999px; padding: 3px 10px; margin-left: 6px; vertical-align: middle;\"\u003eExclusive\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; margin: 0; color: #4a4a42;\"\u003eCertified organic popcorn kernels — a larger, denser grain not offered by other Australian sterilised grain bag suppliers. Slower colonising but nutrient-dense, popular for species that reward a richer grain substrate (Shiitake, Reishi, King Oyster).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- ============ SECTION 4: WHAT YOU'LL NOTICE ============ --\u003e\n\u003ch2 style=\"font-size: 22px; font-weight: bold; color: #2f3b26; margin: 0 0 16px; border-bottom: 2px solid #dfe3d3; padding-bottom: 8px;\"\u003eWhat You'll Notice\u003c\/h2\u003e\n\u003cul style=\"margin: 0 0 28px; padding-left: 0; list-style: none;\"\u003e\n\u003cli style=\"padding: 8px 0 8px 28px; position: relative; font-size: 15px; border-bottom: 1px solid #eceee4;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #5c7a4a; font-weight: bold;\"\u003e✓\u003c\/span\u003e No sterilising equipment needed — every bag arrives ready to inject\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0 8px 28px; position: relative; font-size: 15px; border-bottom: 1px solid #eceee4;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #5c7a4a; font-weight: bold;\"\u003e✓\u003c\/span\u003e Faster start — inoculate within minutes instead of a full day of soak, simmer, and sterilise\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0 8px 28px; position: relative; font-size: 15px; border-bottom: 1px solid #eceee4;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #5c7a4a; font-weight: bold;\"\u003e✓\u003c\/span\u003e Self-healing silicone injection port — inject with a liquid culture or spore syringe, no flow hood required\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0 8px 28px; position: relative; font-size: 15px; border-bottom: 1px solid #eceee4;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #5c7a4a; font-weight: bold;\"\u003e✓\u003c\/span\u003e Isopropyl alcohol swab included with every bag — sanitise the port and go, nothing extra to buy first\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0 8px 28px; position: relative; font-size: 15px; border-bottom: 1px solid #eceee4;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #5c7a4a; font-weight: bold;\"\u003e✓\u003c\/span\u003e 0.2 micron filter patch for clean gas exchange without contamination risk\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0 8px 28px; position: relative; font-size: 15px; border-bottom: 1px solid #eceee4;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #5c7a4a; font-weight: bold;\"\u003e✓\u003c\/span\u003e Consistent grain-to-water ratio every batch — no guesswork on hydration\u003c\/li\u003e\n\u003cli style=\"padding: 8px 0 8px 28px; position: relative; font-size: 15px;\"\u003e\n\u003cspan style=\"position: absolute; left: 0; color: #5c7a4a; font-weight: bold;\"\u003e✓\u003c\/span\u003e Four grain options in one listing — mix and match for different species without reordering\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- ============ SECTION 5: SCIENCE CALLOUT ============ --\u003e\n\u003cdiv style=\"background: #eef2e6; border-left: 4px solid #5c7a4a; border-radius: 6px; padding: 18px 20px; margin: 0 0 28px;\"\u003e\n\u003ch3 style=\"font-size: 15px; font-weight: bold; text-transform: uppercase; letter-spacing: .04em; color: #3d4d33; margin: 0 0 10px;\"\u003eThe Science\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; margin: 0; color: #3d4630;\"\u003eSterilisation removes competing organisms so your inoculated culture has the entire grain to itself — this is what separates a sterilised substrate from a pasteurised one, and why grain spawn colonises so much faster and cleaner than bulk substrate. Each bag is autoclaved at 121°C \/ 15 PSI for a hold time matched to its finish weight (2KG bags run longer than 500g, since heat needs to fully penetrate a larger grain mass to reach sterilising temperature at the core). We add 3% by weight of calcium sulphate (gypsum) and calcium carbonate (chalk) to every bag — gypsum stops the grain clumping into a solid mass as it colonises, and chalk buffers pH toward the slightly alkaline range most gourmet species prefer, discouraging bacterial and mould competitors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- ============ SECTION 6: APPLICATION \/ USE GUIDE ============ --\u003e\n\u003ch2 style=\"font-size: 22px; font-weight: bold; color: #2f3b26; margin: 0 0 16px; border-bottom: 2px solid #dfe3d3; padding-bottom: 8px;\"\u003eHow To Use\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 0 0 16px; font-size: 14px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background: #2f3b26;\"\u003e\n\u003cth style=\"color: #ffffff; text-align: left; padding: 10px 12px; font-weight: 600;\"\u003eFinish Weight\u003c\/th\u003e\n\u003cth style=\"color: #ffffff; text-align: left; padding: 10px 12px; font-weight: 600;\"\u003eInoculation Volume\u003c\/th\u003e\n\u003cth style=\"color: #ffffff; text-align: left; padding: 10px 12px; font-weight: 600;\"\u003eMethod\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #f7f7f0;\"\u003e\n\u003ctd style=\"padding: 10px 12px; border-bottom: 1px solid #e3e5da;\"\u003e\n\u003cstrong\u003e500g\u003c\/strong\u003e \u003cspan style=\"display: inline-block; background: #5c7a4a; color: #fff; font-size: 10px; font-weight: bold; border-radius: 4px; padding: 2px 6px; margin-left: 6px;\"\u003eSM\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; border-bottom: 1px solid #e3e5da;\"\u003e\n\u003cp\u003e~5mL liquid culture\/spore syringe or 50g spawn\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; border-bottom: 1px solid #e3e5da;\"\u003eWipe the injection port with the included alcohol swab, inject through the port, gently distribute liquid across grain, incubate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #ffffff;\"\u003e\n\u003ctd style=\"padding: 10px 12px; border-bottom: 1px solid #e3e5da;\"\u003e\n\u003cstrong\u003e1KG\u003c\/strong\u003e \u003cspan style=\"display: inline-block; background: #5c7a4a; color: #fff; font-size: 10px; font-weight: bold; border-radius: 4px; padding: 2px 6px; margin-left: 6px;\"\u003eMD\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; border-bottom: 1px solid #e3e5da;\"\u003e~10mL liquid culture\/spore syringe or 100g spawn\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px; border-bottom: 1px solid #e3e5da;\"\u003eSame method — one full syringe typically covers one 1KG bag\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f7f7f0;\"\u003e\n\u003ctd style=\"padding: 10px 12px;\"\u003e\n\u003cstrong\u003e2KG\u003c\/strong\u003e \u003cspan style=\"display: inline-block; background: #5c7a4a; color: #fff; font-size: 10px; font-weight: bold; border-radius: 4px; padding: 2px 6px; margin-left: 6px;\"\u003eLG\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px;\"\u003e~10–20mL liquid culture or 200g spawn\u003c\/td\u003e\n\u003ctd style=\"padding: 10px 12px;\"\u003eSame method — avoid over-injecting in one spot; larger grain mass benefits from wider liquid distribution\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"font-size: 14px; margin: 0 0 28px; color: #4a4a42;\"\u003eIncubate at 22–24°C out of direct sunlight. Colonisation typically takes 10–21 days depending on species and culture vigour — faster-growing species (Oyster varieties) sit at the shorter end, slower species (Reishi, Shiitake) take longer. Once fully white, break up the grain inside the sealed bag before mixing into bulk substrate, or use directly for a grain-to-grain expansion.\u003c\/p\u003e\n\u003c!-- ============ SECTION 7: STORAGE + WARNING ============ --\u003e\n\u003cdiv style=\"background: #fbf3e6; border-left: 4px solid #c98a1e; border-radius: 6px; padding: 18px 20px; margin: 0 0 28px;\"\u003e\n\u003ch3 style=\"font-size: 15px; font-weight: bold; text-transform: uppercase; letter-spacing: .04em; color: #7a5417; margin: 0 0 10px;\"\u003eStorage \u0026amp; Safety\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; margin: 0; color: #5c4318;\"\u003eStore unopened bags at room temperature, out of direct sunlight, and use within 30 days of receipt for best results. Once injected, keep at 22–24°C during colonisation. Do not consume raw or sterilised grain — this product is intended for mushroom cultivation only. Keep away from children and pets prior to and during colonisation. If a bag arrives damaged, torn, or with a compromised filter patch or injection port, photograph it and contact us before inoculating — sterility cannot be guaranteed once the seal is broken.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- ============ SECTION 8: SPECIFICATIONS ============ --\u003e\n\u003ch2 style=\"font-size: 22px; font-weight: bold; color: #2f3b26; margin: 0 0 16px; border-bottom: 2px solid #dfe3d3; padding-bottom: 8px;\"\u003eSpecifications\u003c\/h2\u003e\n\u003cul style=\"margin: 0 0 28px; padding-left: 0; list-style: none;\"\u003e\n\u003cli style=\"padding: 6px 0; font-size: 14px;\"\u003e\n\u003cstrong\u003eContents:\u003c\/strong\u003e Sterilised grain (Millet, Organic Wheat, Organic Rye, or Organic Popcorn) with 3% calcium sulphate (gypsum) and calcium carbonate (chalk) by weight\u003c\/li\u003e\n\u003cli style=\"padding: 6px 0; font-size: 14px;\"\u003e\n\u003cstrong\u003eBag type:\u003c\/strong\u003e Heat-resistant polypropylene grow bag, self-healing silicone injection port, 0.2 micron breathable filter patch\u003c\/li\u003e\n\u003cli style=\"padding: 6px 0; font-size: 14px;\"\u003e\n\u003cstrong\u003eIncluded:\u003c\/strong\u003e 1x isopropyl alcohol swab per bag for sanitising the injection port before inoculation\u003c\/li\u003e\n\u003cli style=\"padding: 6px 0; font-size: 14px;\"\u003e\n\u003cstrong\u003eFinish weight options:\u003c\/strong\u003e 500g, 1KG, 2KG\u003c\/li\u003e\n\u003cli style=\"padding: 6px 0; font-size: 14px;\"\u003e\n\u003cstrong\u003eSterilisation:\u003c\/strong\u003e Autoclaved at 121°C \/ 15 PSI, hold time scaled to bag size\u003c\/li\u003e\n\u003cli style=\"padding: 6px 0; font-size: 14px;\"\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Australian Grown\u003c\/li\u003e\n\u003cli style=\"padding: 6px 0; font-size: 14px;\"\u003e\n\u003cstrong\u003eCertification:\u003c\/strong\u003e Wheat, Rye, and Popcorn sourced Certified Organic; Millet is conventionally grown\u003c\/li\u003e\n\u003cli style=\"padding: 6px 0; font-size: 14px;\"\u003e\n\u003cstrong\u003eInoculation:\u003c\/strong\u003e Ready to inject on arrival — no sterilising equipment required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- ============ SECTION 9: BRAND STORY ============ --\u003e\n\u003cdiv style=\"background: #2f3b26; border-radius: 10px; padding: 24px;\"\u003e\n\u003ch3 style=\"font-size: 16px; font-weight: bold; color: #ffffff; margin: 0 0 10px;\"\u003eHand-Prepared on Tamborine Mountain\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; margin: 0; color: #dfe3d3;\"\u003eKai Kai Farm is a family-run, certified organic farm in Queensland's Scenic Rim, founded by Quintin and Amy. Every bag in this range is sterilised through the same autoclave process we run our own farm's grain spawn through — we're not outsourcing this to a third party, we're using it ourselves. When you buy from us, you're supporting a small local business focused on accessible, science-backed mushroom cultivation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Kai Kai Farm","offers":[{"title":"Millet \/ 500g","offer_id":52673178468663,"sku":"PC-MIL-500G","price":12.0,"currency_code":"AUD","in_stock":true},{"title":"Millet \/ 1KG","offer_id":52673178501431,"sku":"PC-MIL-1KG","price":15.0,"currency_code":"AUD","in_stock":true},{"title":"Millet \/ 2KG","offer_id":52673178534199,"sku":"PC-MIL-2KG","price":20.0,"currency_code":"AUD","in_stock":true},{"title":"Organic Wheat \/ 500g","offer_id":52673178566967,"sku":"PC-WHE-500G","price":16.0,"currency_code":"AUD","in_stock":true},{"title":"Organic Wheat \/ 1KG","offer_id":52673178599735,"sku":"PC-WHE-1KG","price":22.0,"currency_code":"AUD","in_stock":true},{"title":"Organic Wheat \/ 2KG","offer_id":52673178632503,"sku":"PC-WHE-2KG","price":28.0,"currency_code":"AUD","in_stock":true},{"title":"Organic Rye \/ 500g","offer_id":52673178665271,"sku":"PC-RYE-500G","price":16.0,"currency_code":"AUD","in_stock":true},{"title":"Organic Rye \/ 1KG","offer_id":52673178698039,"sku":"PC-RYE-1KG","price":22.0,"currency_code":"AUD","in_stock":true},{"title":"Organic Rye \/ 2KG","offer_id":52673178730807,"sku":"PC-RYE-2KG","price":28.0,"currency_code":"AUD","in_stock":true},{"title":"Organic Corn \/ 500g","offer_id":52673178763575,"sku":"PC-COR-500G","price":18.0,"currency_code":"AUD","in_stock":true},{"title":"Organic Corn \/ 1KG","offer_id":52673178796343,"sku":"PC-CRN-1KG","price":24.0,"currency_code":"AUD","in_stock":true},{"title":"Organic Corn \/ 2KG","offer_id":52673178829111,"sku":"PC-CRN-2KG","price":28.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0791\/2040\/0695\/files\/Chestnut_Spawn_On_Organic_Wheat_Grain_Substrate.jpg?v=1782808453","url":"https:\/\/kaikaifarm.au\/products\/pre-sterilised-grain-spawn-bags","provider":"Kai Kai Farm","version":"1.0","type":"link"}