GigaYeast Bavarian Hefe GY017 is traditional Hefeweizen Yeast from one of Bavaria’s oldest breweries. GY017 Bavarian Hefe GigaYeast is a robust attenuator that works over a broad range of temperatures and produces the classic banana and clove notes of the German wheat beer style. Moderate sulphide producer (will dissipate with conditioning).
Attenuation Medium Gravity*
77% – 81%
Attenuation High Gravity*
66% – 69% (8.9% – 9.6% ABV)
18˚C – 27˚C (64˚F – 80˚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˚ – 70˚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.
Hefeweizen Style Guide:
Hefeweizen is a traditional Bavarian wheat beer brewed with at least 50% wheat malt and yeast that produce a signature clove and banana character. The hopping rate is very low, which allows an underlying, grainy, bready flavor from the wheat and Pilsner malt to shine through. It is a light, approachable beer with a hazy appearance and has a soft texture. It has a high level of protein and suspended yeast that makes hefeweizen a cloudy, or at least a hazy, beer. While most brewers are familiar with a cloudy German hefeweizen, there is also a filtered, brilliantly clear version called kristallweizen. Hefeweizen ranges in color from pale straw to dark gold and has a large, dense, creamy white head. The aroma of a good hefeweizen includes moderate spicy clove notes and fruity banana esters. (Jamil Zainasheff, BYO Magazine, Issue: Jan/Feb 2011).