Made In the San Francisco Bay Area
GigaYeast, Inc.

British Ale Three GY041

Attenuation Medium Gravity*                        79% – 83%

Attenuation High Gravity*                              74% – 77% (9.2% – 9.8% ABV)

Temperature Range:                                   64˚F – 77˚F

Flocculation:                                                  Medium/Medium High


From a British craft brewery known for its award winning hoppy English ales. Good flocculation, slight esters, excellent for accentuating hop flavor and aroma. This British ale yeast is less flocculent than GY011 and GY031– but still creates a clear beer. Finished beer is dry and crisp with just a hint of esters.


Representative Styles:

ESB                                    Pale/Amber Ale

Bitter                                  Stout

India Pale Ale                  Brown 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.