Made In the San Francisco Bay Area
GigaYeast, Inc.

British Ale Yeast Two GY031

Attenuation Medium Gravity*                        80% – 82%

Attenuation High Gravity*                              72% – 75% (9.3% – 10.0% ABV)

Temperature Range:                                   64˚F – 75˚F

Flocculation:                                                  High



From a traditional British brewery.  Very flocculent— produces clear beer.   GY031 leaves a slightly sweet malty flavor.   Flavor profile is nearly neutral at lower fermentation temps.  Slight banana/fruit notes appear at higher temps.  Perfect for English style pale ales, stouts, porters, bitters browns etc.


Representative Styles:

British Ales                        Pale/Amber Ale

Barley Wine                       Scotch Ale

Bitter                                  Stout

India Pale Ale


* Medium Gravity is 14˚ – 16˚Plato.  High Gravity is 23˚- 25˚Plato.

  The working temperature range represents the range at which fermentation for a given strain produces a typical attenuation- not necessarily the ideal temperature for your particular beer style.  As a rule of thumb, start ale yeast fermentation at 68˚ – 72˚F and then lower or raise temp as desired.  Lager Yeast are typically fermented at 45˚ – 58˚F.  If desired, Lager Yeast can be given a “hot start” at 65-68˚F and then lowered to the primary temperature after active fermentation begins (10-20hrs).

GigaYeast laboratory is still gathering data on many of our strains.  Information provided here may change some in the future.  Please call if you need more info.