Stainless steel fermentation tanks in a commercial brewery corridor

Australia's Premier Liquid Yeast Manufacturer

Melbourne-made. Shipped fresh. Trusted by trophy-winning breweries.

Talk to us about yeast Browse our strains

Brewed with BSY.

What we make

New England yeast strain illustration Pilsen lager yeast illustration San Diego ale yeast illustration

Live Liquid Yeast

45 strains. Produced in Melbourne, shipped nationally.

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Bluestone Yeast booster range: Zinc, Vitamin, and High Gravity

Nutrient Boosters

Cold-side zinc, vitamins, and high-gravity support. Under 1c/L.

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Clean Repitch System

Clean Repitch System

Closed-transfer yeast harvesting for production breweries.

Learn more
BSY Michigan yeast being pitched into a Molly Rose fermenter

Melbourne-made

45 strains. Ready to ship this week.

20-30%

production increase

KAIJU! Beer reports since switching to BSY. AIBA Champion Medium Brewery 2024.

Champion

Victorian Brewery

AIBA 2025 Best European Lager, Hanging Rauch.

Consistency

of Excellence

AIBA 2025, The Chop. BSY's foundational proof point since Rattenhund.

What our customers say

“Bluestone are a fantastic partner to work with: reliable, knowledgeable, and always committed to helping us achieve the best fermentation results. A local Australian lab makes a world of difference. Six years and counting.”

Ally ThomsonHead of Brewing & Production, Range Brewing

Why Bluestone Yeast

Hey bud,
you got here fast.
Yep, I left
Melbourne as soon
as you ordered.

Fresher

Produced in Melbourne. No imports, no cold chain risk.

Want to do
that again?
Absolutely. I love
making beer.

Repitchable

Selected for multi-generation performance.

Hey buds, I'm
feeling sluggish.
I think we
need a boost!

Supported

Direct access to our team for strain selection and troubleshooting.

Hey bud, I think
we need protection.
We better head
to the bank.

Protected

House strain protection through BSY Bio-Banking.

Green barley field under blue sky

Ready to turn malt into beer?

15-minute call. We will recommend strains for your setup and send samples.

Book a call Get in touch