Craft your own probiotic-cultured dairy at home with our Bacillus coagulans BC99 Starter Culture. This spore-forming culture is prized by home fermenters for its heat tolerance and reliable fermentation performance. Each sachet delivers 50 billion CFU, ready to activate in milk using a yoghurt maker. Comes in 3 x 500mg single-use sachets for freshness and consistency batch after batch.
Homemade Cultured Dairy, Made Simple
Our Bacillus coagulans BC99 Starter Culture is designed for home fermenters who want a reliable, single-strain culture for making their own fermented dairy. Bacillus coagulans is a spore-forming, lactic-acid-producing bacterium known in food fermentation for its robustness — it tolerates a wide pH range and higher processing temperatures than many conventional dairy starter cultures, making it a popular choice for slow, long-ferment methods in a home yoghurt maker.
Each 500mg sachet is individually portioned to deliver 50 billion CFU at the point of inoculation, so you can culture consistent batches without measuring or guesswork. Simply add one sachet to prepared milk in your yoghurt maker and follow your preferred fermentation method.
Why Home Fermenters Choose BC99
Heat-tolerant strain — suited to warmer fermentation set points used in some long-ferment yoghurt methods
Single-strain culture — allows you to isolate and observe this specific strain's fermentation behaviour, flavour profile and set
Consistent potency — individually sealed sachets protect viability and give you the same starting CFU count every time
Simple to use — no starter maintenance, or complex ratios required; just add, ferment, and store
Versatile base — can be combined with other starter cultures or prebiotic substrates (such as inulin) according to your own recipe
What's in the Box
3 x 500mg single-use sachets, each containing Bacillus coagulans BC99 at 50 billion CFU per sachet at time of manufacture.
How to Use
Prepare your milk of choice (pasteurised or ultra-pasteurised dairy is recommended for home fermentation).
Warm milk to the temperature specified for your yoghurt maker and recipe.
Empty one 500mg sachet into the milk and stir to combine thoroughly.
Transfer to your yoghurt maker and ferment according to your chosen method and timeframe.
Once set, refrigerate promptly and consume within one week.
Each sachet is for single-batch use. Do not reuse opened sachets. You can use some of the prepared yoghurt as a starter from subsequent batches.
Storage
Store unopened sachets in a cool, dry place away from direct sunlight. Refrigeration is recommended to preserve potency, especially in warmer climates. Use by the date printed on the pack.
Ingredients
Bacillus coagulans BC99, maltodextrin (carrier). — see packaging for full allergen statement.
Important Information
This product is a food ingredient intended for use in home fermentation of dairy products. It is not a therapeutic good and is not intended to diagnose, treat, cure, or prevent any disease. It has not been evaluated for therapeutic use. If you have specific dietary or health requirements, please consult your healthcare practitioner before use.
FAQ
What is Bacillus coagulans BC99 used for?
BC99 is a spore-forming bacterial culture used in home fermentation to culture dairy products such as yoghurt. It's valued by home fermenters for its stability and tolerance of a broad temperature and pH range during the fermentation process.
How many sachets do I need per batch?
One 500mg sachet is designed for a single fermentation batch. Follow your recipe's milk volume guidelines for best results.
Can I use BC99 with other starter cultures?
Yes — many home fermenters combine BC99 with other cultures as part of their own recipes. Fermentation outcomes will vary depending on combination and method used.
Is this product dairy-free?
The starter culture sachet itself does not contain dairy; however, it is intended for use in culturing dairy products and is manufactured in a facility that processes dairy.
How long does the finished yoghurt last?
Homemade cultured dairy should be refrigerated promptly after fermentation and consumed within 1 week (follow safe food handling guidance).
SHIPPING INFORMATION:
Choose express shipping to ensure your culture arrives quickly and maintains their quality for the best results! Refrigerate on Arrival.
IMPORTANT: We 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
Best Before can be extended to 2 years by storing frozen

