L28 Urkel
Liquid Lager yeast from Imperial Yeast.
Lab
Imperial Yeast· Lager · Liquid · L28
Imperial Yeast· Lager · Liquid · L28Specs
Attenuation
71–75%
The share of sugars the yeast ferments out. Higher attenuation means a drier, stronger beer.
Optimal temp
11–14°C
52–57°F
The range where this strain ferments cleanly, without throwing off-flavors. Most brewers pitch near the low end.
Flocculation
Medium
How readily the yeast clumps together and drops clear once fermentation winds down.
Alcohol tolerance
≈10% ABV
The rough ABV ceiling where the yeast stresses out and stops fermenting.
Genetic traits
Phenolics
POF−
Ferments clean
Phenolically clean (POF-negative). No clove or spice, so malt, esters, and hops come through unmasked. The norm for American and British ales and most lagers.
Diastatic
STA-1−
Not diastatic
Does not carry the STA1 (diastaticus) gene. It attenuates normally, with no diastaticus over-attenuation or gushing risk.
Same strain, other labs
Potential substitutes for L28 Urkel
Usually used in
Czech PilsnerCzech Amber LagerCzech Dark LagerAmerican LagerPre-Prohibition LagerSchwarzbierGerman PilsDunkelsHellesMexican LagerVienna LagerRauchbierDortmunder ExportMaibock+5 more
Common questions
- What is the L28 Urkel equivalent?
- OYL-108 Pilsner II, WLP830 German Lager Yeast, and 2278 Czech Pils — the same strain from other labs, the Weihenstephan 34/70 (WLP830) strain.
- What is L28 Urkel's attenuation?
- 71–75% apparent attenuation.
- What temperature should I ferment L28 Urkel at?
- 11–14°C is the recommended range.
- What beer styles is L28 Urkel good for?
- Czech Pilsner, Czech Amber Lager, Czech Dark Lager, American Lager, Pre-Prohibition Lager, Schwarzbier, American Lager, German Pils, Dunkels, Helles, Mexican Lager, Vienna Lager, Rauchbier, Dortmunder Export, Maibock, Bock, Marzen, Baltic Porter, Doppelbock, and Eisbock & Bière de Garde.
- What can I substitute for L28 Urkel?
- SafLager S-23, 2001 Pilsner Urquell H-Strain, Premium Pils, and LalBrew Diamond Lager.
Brew with L28 Urkel
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