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Irish Stout

GY080


Attenuation Medium Gravity* 82% - 86%
Attenuation High Gravity* 77% – 80% (10.1% – 10.7% ABV)
Temperature Range† 64˚F – 72˚F
Flocculation Medium

Description: From one of the most famous stouts in the world. Creates a crisp, dry beer with a subtle fruity profile and a slightly tangy finish. Makes an amazing stout or porter but is also great for red, amber and even pale ales. This ale yeast is a robust fermenter perfect for high gravity brews and settles out well enough to create a relatively clear beer.


Representative Styles: Stout, Porter, Imperial Stout, Amber/Red Ale, English Pale Ale


* 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.