Made In the San Francisco Bay Area
GigaYeast, Inc.

NorCal Ale Five GY029

Attenuation Medium Gravity*                        69% – 73%

Attenuation High Gravity*                              69% – 72% (8.5% – 9.2% ABV)

Temperature Range:                                   67˚F – 75˚F

Flocculation:                                                  Medium/High



More flocculent and less attenuative than GY001.  Ferments more slowly and leaves a clear beer with residual sweetness and a slight fruity nose.  Excellent for full bodied, malt forward beers.


Representative Styles:

Brown                        Porter

Amber                        Pale



* 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.