Did I ferment that? Excellent choice for your Czech lager fermentations. Urkel allows for a nice balance between hops and malt. This strain can be slightly sulphery during fermentation, but it cleans up during lagering. Fermentation at the higher end of the range will produce a beer with minimal sulfur and a light ester profile with that classic Czech edge you are looking for. Temp: 52–58°F (11–14°C) - Attenuation: 71-75% - Flocculation: MEDIUM - Alcohol Tolerance: 10%