{"product_id":"b-subtilus-bs31-starter-culture-3-x-500mg","title":"Bacillus subtilis BSCU1 Starter Culture — 3 × 500mg sachets 50 billion CFU per sachet | Home fermentation culture for cultured dairy","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eBacillus subtilis BSCU1 Starter Culture — 3 × 500mg sachets\u003c\/strong\u003e 50\u003cem\u003e billion CFU per sachet | Home fermentation culture for cultured dairy\u003c\/em\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eA high-potency single-strain starter culture for crafting cultured dairy at home. Each 500mg sachet contains a guaranteed minimum of 50 billion colony-forming units per gram of \u003cem\u003eBacillus subtilis\u003c\/em\u003e strain BSCU1 — a robust, spore-forming culture selected for its consistent fermentation performance across a range of milk types and incubation conditions.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eAbout the culture\u003c\/strong\u003e \u003cem\u003eBacillus subtilis\u003c\/em\u003e BSCU1 is a heat-tolerant, naturally occurring food-grade microorganism with a long history of use in traditional fermented foods. The strain has been selected for its vigorous activity, predictable culture times, and stable performance in domestic yoghurt-maker conditions. Supplied as a freeze-dried powder for easy measuring and direct inoculation.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eWhat it produces\u003c\/strong\u003e A smooth, mildly tangy cultured dairy ferment with a soft-set body. Texture, firmness, and flavour can be adjusted by varying milk fat content, incubation time, and temperature. Suitable for use with whole, low-fat, or non-homogenised cow's milk, and compatible with goat and sheep milk. \u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFormat\u003c\/strong\u003e 3 × 500mg sachets (1.5g total). Each sachet inoculates approximately 1–2 litres of milk.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eA suitable replacement for HU58 in SIBO yoghurt.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-end=\"267\" data-start=\"169\"\u003eSHIPPING INFORMATION:\u003c\/h3\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e\u003cspan size=\"2\"\u003e\u003cspan face=\"Arial\"\u003e\u003cspan color=\"#1e1e1e\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eChoose express shipping to ensure your fresh kefir grains arrive quickly and maintains their quality for the best results! Refrigerate on Arrival.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIMPORTANT: \u003c\/strong\u003eWe only ship our yoghurt cultures on a Monday, Tuesday and Wednesday (as item is stored refrigerated) so that they do not remain in transit via Australia Post over the weekend\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBest Before can be extended to 2 years by storing frozen\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eWhat is Bacillus subtilis BSCU1?\u003c\/strong\u003e BSCU1 is a single-strain, food-grade culture of \u003cem\u003eBacillus subtilis\u003c\/em\u003e — a spore-forming microorganism with a long history of use in traditional fermented foods. The BSCU1 designation refers to the specific strain selected for this product.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eHow is this different from a standard yoghurt culture?\u003c\/strong\u003e Conventional yoghurt cultures contain \u003cem\u003eLactobacillus bulgaricus\u003c\/em\u003e and \u003cem\u003eStreptococcus thermophilus\u003c\/em\u003e, which produce the classic sharp, lactic flavour and firm set characteristic of yoghurt. BSCU1 is a different microorganism that produces a milder, smoother ferment with its own distinct flavour profile. The finished product is correctly labelled as cultured or fermented dairy rather than yoghurt.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eHow many batches can I make per sachet?\u003c\/strong\u003e Each 500mg sachet is formulated to inoculate 1–2 litres of milk. However you can reserve 2 tablespoons of prepared product to use as a starter for the next batch. This can be repeated up to 6 times before using a new sachet.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eWhat milk works best?\u003c\/strong\u003e Fresh, pasteurised whole cow's milk gives the most consistent results. Low-fat, goat, and sheep milk also work well. UHT milk can be used without pre-heating. Plant-based milks are not recommended — the culture relies on dairy components for proper fermentation. However the culture can be combined with L reuteri and L gasseri for non dairy ferments.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eCan I use raw milk?\u003c\/strong\u003e We recommend pasteurising milk by heating to 80 °C and holding for 10 minutes, then cooling to room temperature before inoculation. This deactivates competing wild microorganisms and gives the culture the cleanest environment to work in.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eMy ferment hasn't set after 36 hours — what went wrong?\u003c\/strong\u003e The most common causes are incubation temperature drift (below 38 °C slows the culture significantly), residual cleaning agents on jars, milk that was too hot when the culture was added (above 45 °C can damage the culture), or an expired sachet. Check your yoghurt maker's temperature with a thermometer and try a fresh sachet.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eCan I reuse a spoonful of the finished batch as a starter for the next?\u003c\/strong\u003e Back-slopping (using a portion of the previous batch) can work for up to generations but results become inconsistent over time as the culture ratio shifts. For reliable, high-CFU results, start each batch with a fresh sachet.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eHow should I store unopened sachets?\u003c\/strong\u003e Sealed sachets are stable below 25 °C in a cool, dry place. For longest shelf life and maximum CFU retention, refrigerate or freeze. Once opened, use immediately — the culture is moisture-sensitive.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eHow long does the finished ferment keep?\u003c\/strong\u003e Refrigerate the finished product at or below 4 °C and consume within 7 days. Always use clean utensils when serving and discard if the product develops off-odours, discolouration, or unexpected texture.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eWhat does it taste like?\u003c\/strong\u003e Mild, slightly tangy, and creamy — softer in flavour than traditional yoghurt. The taste develops with longer incubation; shorter ferments are gentler, longer ferments are more pronounced.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eIs the culture suitable for vegetarians?\u003c\/strong\u003e Yes. The culture itself contains milk\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eCan I use this culture for anything other than dairy?\u003c\/strong\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e This product has been formulated and tested for cultured dairy applications using a domestic yoghurt maker. It can be combined with L reuteri and L gasseri for non dairy products.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e \u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e \u003c\/p\u003e","brand":"Nourishme Organics","offers":[{"title":"Default Title","offer_id":46801566335132,"sku":null,"price":24.99,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0667\/2089\/files\/Bsubtilisfrontmockup..png?v=1778641396","url":"https:\/\/www.nourishmeorganics.com.au\/products\/b-subtilus-bs31-starter-culture-3-x-500mg","provider":"Nourishme Organics","version":"1.0","type":"link"}