As former professional brewers, we take great pride in the craft, technique, and finesse required to brew a fantastic lager.  We are very proud of our collection of lager strains and feel each yeast below offers a uniqueness to the finished product. Crisp, clean, malty, and smooth.

JY001 - Czech Lager I (European Lager)
JY001 is a beautiful strain straight from the heart of where pilsner-style beers originated. Isolated from a small Czech microbrewery by JY. Very smooth taste with a touch of maltiness, this yeast will bring out the best in your refreshing lager! Aromatics produced complement hoppy pilsners perfectly, and smooth taste that lets the malt shine. A very slow starting strain but one that keeps on chugging until the job is done. Can be used at higher temperatures without problems, lagering cold when fermentation has completed for a minimal 3 weeks is advised. Flocculates very hard, resulting in an almost solid yeast cake - plan ahead when you plan to repitch.

Origin: Czech Republic
Temperature Range: 45-65°F (7-24°C)
Flocculation: +++++
Attenuation: 69-75%
Alcohol Tolerance: 9%

JY112 - Czech Lager II
From a famous Czech brewery. Clean and neural, leaving some body after fermentation has completed. Fermentation temperature range is a bit smaller than Czech Lager I, it also does not flocculate as hard, but fermentation can be a little faster.

Origin: Czech Republic
Temperature Range: 48-58°F (9-15°C)
Flocculation: ++(+)
Attenuation: 73-78%
Alcohol Tolerance: 9%

JY153 - Mexican Lager
Neutral lager yeast, great for light adjunct beers and clean and easy drinking lagers. Although attenuation can be on the lower side, perceived as crisp and refreshing. Maltiness is on the forefront but never offensive. Great lager yeast for a diverse set of beer styles.

Origin: Unknown
Temperature Range: 48-58°F (9-15°C)
Flocculation: +
Attenuation: 70-75%
Alcohol Tolerance: 9%

JY218 - Augustiner Lager
Another clean lager strain, widely used for hoppier Czech and German-style Pilsners.  A great choice for a helles lager as well. More pronounced yeast esters when fermenting at warmer temperatures.

Origin: Germany
Temperature Range: 53-63°F (10-16°C)
Flocculation: +
Attenuation: 72-75%
Alcohol Tolerance: 10%

JY219 - German Lager I
Clean, with a nice balance between fruity and malty. Arguably the most used lager yeast in Germany. Can ferment a wide range of temperatures but likes to be in the low to high 50ies F (10-16C). Produces easy drinkable lagers, especially kellerbiers.  Can also be used for Steam beers (60-70F)

Origin: Germany
Temperature Range: 50-59°F (10-16°C)
Flocculation: +(+)
Attenuation: 75-80%
Alcohol Tolerance: 10%

JY221 - München Lager   
A robust lager strain with good attenuation.  Perfect for dry pilsners and crisp Marzen/fiestbiers.  Low sulfur production even at the lower temperature range.

Origin: Germany
Temperature Range: 50-59°F (10-16°C)
Flocculation: +(+)
Attenuation: 75-80%
Alcohol Tolerance: 10%

JY258 - High Pressure Lager
Used to ferment lager beer in one week. Set fermentation temperature to  62-68°F (17-20°C) and maintain pressure between 6-10PSI with your spunding valve until terminal gravity is reached, often in under seven days. Cool finished beer and lager for 5-7 days. This yeast creates a quality lager while reducing fermenter tank time. Head pressure during primary fermentation reduces ester production, creating a clean lager brewed at much faster traditional ale fermentation temperatures. 

Origin: unknown
Temperature Range: 62-68°F (17-20°C)
Flocculation: +
Attenuation: 73-78%
Alcohol Tolerance: 11%

JY268 - Franconian Lager
This is the most recent addition to our extensive lager strain collection, and we love it. A balanced, clean strain, it is perfect for bohemian pilsners, classic marzens, or a seasonal doppelbock. Similar to JY219 but with slightly higher attenuation and very low sulfur production. Franconian Lager was popular in Europe during the 1950’s and infrequently used until a recent discovery from a forgotten stock in a German lab.

Origin: Franconia
Temperature Range: 50-56°F (10-13°C)
Flocculation: ++
Attenuation: 73-78%
Alcohol Tolerance: 11%