Pure Liquid Yeast - Commercial Brewing

Guaranteed fresh & pure.  For over 30 years, Wyeast has been the preferred supplier of craft brewers worldwide because of our:

All Wyeast ale and lager cultures are packaged at 1.2 billion viable cells/mL.

Quality Control
All cultures meet or exceed Wyeast’s strict quality standards and specifications prior to shipment.

Cell counts for each pitch are the same every time you order, guaranteed.

Our staff of expert microbiologists and professional brewers.


Saccharomyces Commercial Brewing Cultures

Viable Cell Count: 1.20 x 10 cells/mL*

Purity: Single Morphology

Total anaerobic bacteria: <1 cfu/ 7.5x10 yeast cells*

Total aerobic bacteria: <1 cfu/ 7.5x10 yeast cells*

Wild yeast non Saccharomyces<1 cfu/ 7.5x10 yeast cells*

Wild yeast non Brettanomyces<1 cfu/ 7.5x10 yeast cells*

Culture Density: 1.10 g/mL


* Some culture specifications are based on percent solids analysis

Absolute freshness is guaranteed when you order Wyeast Premium Liquid Yeast. Depending on the volume ordered, many strains are available with only a few days’ lead time or can be produced and delivered within 14 days of your order date. Proprietary strains and off-season Private Collection strains can be ready in as little as 21 days. All yeast concentrates are guaranteed to have viable cell counts of 1.2x10⁹ (1.2 billion) cells/mL.  

Available from 1.0 liter and up to suit your brewhouse, batch, gravity and style.

Suggested Quantities for Direct Pitch:

Ales <15°P (1.060 S.G.):  0.5 liter per 1 bbl (0.5 liter per 1.17 hL)
Lagers  <15°P (1.060 S.G.) cold fermentation: 1.0 liter per 1 bbl (1.0 liter per 1.17 hL)

For S.G. greater than 15 °P, please refer to our Pitch Rates page.