GY045 is a bottom fermenting German Lager GigaYeast used in commercial breweries around the world. GY045 German Lager GigaYeast produces a slightly sweeter but clean beer with a malty finish. Perfect for Pilsners, Märzen, Fest bier etc. GY045 GigaYeast may require a diacetyl rest after fermentation.
Attenuation Medium Gravity*
74% – 78%
Attenuation High Gravity*
58% – 61% (7.6% – 8.3% ABV)
10°C - 15°C (50˚F – 60˚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. Lager Yeast are typically fermented at 9˚ – 13˚C (45˚ – 58˚F). If desired, Lager Yeast can be given a “hot start” at 18-20˚C (65-68˚F) and then lowered to the primary temperature after active fermentation begins (10-20 hrs). GigaYeast laboratory is still gathering data on many of our strains. Information provided here may change some in the future.
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5 star rating
My new go to lager yeast
Review by Jay C. on 28 Aug 2018review stating My new go to lager yeast
OG 1.048 FG 1.014 ABV 4.5% Mash in for a 67 degree rest for 45 minutes, then pull off a portion and perform a decoction; boiling for 20 minutes. Add decoration pull back to mash and stir through for mash out. 93% Gladfield Pilsner Malt 4.5% Gladfield Gladiator Malt 2.5% Gladfield Sour Grapes 8IBU Hallertau Hersbrukker @ 60 mins 4IBU Hallertau Hersbrukker @ 15 mins GY045 German Lager Fermented at 8 degrees, at 75% attenutation ramped up @ 2 degrees a day until it hit 18 degrees and held for 7 days. Crashed to 0.5 degrees and lagered for 4 weeks.
This is, without a doubt, the best lager I have ever made. Perfect ABV to make it super drinkable, with a really pronounced sweet malt flavour, little bitterness and minimal hop flavour, so you won't be distracted from the delicious malts shining through. The Gladiator malt really goes to town in making sure that the beer has an amazing, thick rocky head, which holds steady; with wispy lacing coating the circumference of the glass as I down the last swig.
This is EXACTLY what I remember beer tasting like while I was in Germany.
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