Made In the San Francisco Bay Area
GigaYeast, Inc.

Achouffe Belgian Ale yeast GY003

Attenuation Medium Gravity*                        81% – 84% 

Attenuation High Gravity*                              57% – 60%  (7.7% – 8.4% ABV)

Temperature Range:                                   68˚F – 77˚F

Flocculation:                                                  Medium / Low


Description:  Abbey style yeast from the Belgian Ardennes.   Produces aromatic, spicy clove-like notes and less fruity aromas than GY014.  Moderately flocculant yeast that creates a slightly clearer beer than most Belgians.


Representative Styles:

Belgian Ale                                    Dubbel                 

Belgian Strong                               Tripel

Biere De Garde                 



* Attenuation was measured after 8 days with Ale yeast at 70˚F and Lager yeast at 50˚F.  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.