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Wyeast 5151 Brett Claussenii - Private Collection
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Wyeast 5151-PC Brettanomyces Claussenii
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Wyeast 5151 Brett Claussenii - Private Collection

Item #: 5151XL
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Availability: Out of Stock

A strain of Brettanomyces that can produce tropical fruit aromas and flavors.

Eligible for $8.99 flat rate shipping

  • Description
  • Q and A

Brettanomyces Claussenii was originally isolated from English stock ale by its namesake, N. Claussen. While this strain does produce the classic Brett "horse blanket" , leathery and somewhat smoky notes, they are more subdued when produced by this strain than by other Brett strains. Other aroma and flavor compounds round out the classic Brett character, with tropical fruit notes of pineapple and, to a lesser extent, peach and blueberry. Brett Claussenii can be used as the primary strain for fermenting, but is often used after a primary fermentation with an S. cerevisiae strain, and in blends to produce sour beers. It is highly attenuative, given proper time to fully ferment out, and is known to create a pellicle during fermentation.

Warm Weather Shipping Notice

During the hot summer months we include complimentary ice packs with ALL liquid yeast orders, but cannot guarantee that the ice packs will stay cold during transit, and thus the yeast can potentially be exposed to hot temperatures. We highly recommend ordering dry yeast during the summer months or if you are ordering from a warmer climate.

Yeast Specifications

Temperature Range: 60-75F (15-24C)
Flocculation: Low
Cell Count: 100 Billion
Attenuation: 80%
Alcohol Tolerance: 12%
Typical Styles: Lambics, Geuze, Fruit Lambic, Flanders Red Ale


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