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This yeast strain comes straight from America's bourbon country! Used in the production of bourbon whiskey, this yeast is now available to the homebrewer, thanks to White Labs! This strain tends to produce a malty character, complete with caramel notes, that is balanced by a moderate ester profile. It can be used in high-gravity beers, such as barleywines and Russian Imperial Stouts. It works well, even with bases that include rye or corn. An interesting strain with a high alcohol tolerance and medium flocculation that ferments at slightly higher temperature than most ale strains.

Product Features

  • A strain of yeast originally used in the production of bourbon whiskey.
  • Produces moderate esters with caramel notes.
  • Used to ferment high gravity worts, barleywines, Russian imperial stouts, and worts made with corn and/or rye as part of the base. 


We include complimentary ice packs with ALL liquid yeast orders (if required), 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 hot summer months or if you are ordering from a warmer climate. Many times during the winter an ice pack is not needed so we make the determination based on current temperatures and the destination!

Yeast Specifications

Temperature Range: 72 - 77F
Flocculation: Medium
Cell Count: 100 Billion
Attenuation: 75 - 80%
Alcohol Tolerance: 10 - 15%
Typical Styles: High gravity worts, barleywines, Russian imperial stouts, and worts with corn and/or rye used as part of the base

About White Labs Pure Pitch Packaging

PurePitch Packaging utilizes a White Labs patent pending FLEXCELL process, which allows the yeast to be propagated and packaged in the exact same material, which means the yeast is never exposed to the environment! Click here for more info on the PurePitch advantages.

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