Yeast Services

Since 1872, the Siebel Institute of Technology has been providing fresh liquid brewing yeast to professional brewers around the world, building a reputation for excellence in yeast quality and purity. What makes Siebel Institute yeast different from that of other manufacturers?
Assured performance.

We don’t carry hundreds of varieties of unproven yeast strains: We choose to offer a narrow range of strains with proven characteristics of reliable fermentation performance & accurate flavor production for your ales, lagers and specialty beers. Each of our Siebel Institute yeast strains is maintained using techniques that meet or exceed the standards used in the world’s biggest & best-known breweries. We don’t keep slurries on hand for shipment at the time of ordering. Instead, we begin production of your yeast order at the time the order is placed. During the production period of your culture slant or propagated slurry, our Microbiology Services team performs multiple tests using some of the most advanced techniques and equipment available to assure the purity & performance of your yeast. Your order is not shipped until we are 100% satisfied that it meets the highest possible standards of quality.

When the quality & consistency of your beer is dependent on the quality & consistency of your yeast, you can count on Siebel Institute, America’s oldest brewing industry laboratory & service provider.


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Pure Yeast Cultures

The Siebel Institute of Technology has selected our Siebel Institute BRY brewing yeast strains for their reliable performance in professional brewing applications.

Read more: Pure Yeast Cultures


Yeast Maintenance & Evaluation Services

The Siebel Institute of Technology has been in the brewing yeast business since 1872, providing a full range of yeast banking & maintenance services to some of the greatest names in North American brewing. Now, with our expanded Microbiological Services division in Montreal (Canada), we are pleased to offer the industry’s most advanced yeast management & evaluation services.

Read more: Yeast Maintenance & Evaluation Services


Yeast Genetic Services

While many of our advanced Microbiological Services use cutting-edge analytical technologies employed by some of the world’s largest breweries, their applications can be utilized by breweries and brewing-related companies of every size. Our DNA fingerprinting and rapid analysis services can give you critical information about your yeast, improving your understanding of its characteristics, performance and purity.

Read more: Yeast Genetic Services



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Siebel Institute of Technology is approved by the Division of Private Business and Vocational Schools of the Illinois Board of Higher Education