Omega Yeast OYL-106 German Lager I

A classic workhorse for clean, crisp lagers. OYL-106 gives a lightly malty profile with subtle fruit notes and a tidy finish. It is widely regarded as the world’s most used lager strain and can still deliver convincing lager character at warmer ale-like temperatures. Plan a proper diacetyl rest.

Why brewers pick it

• Versatile temperature range for traditional lagers or quick “pseudo-lager” schedules

• Dependable performance with medium-low flocculation and 73–77% attenuation

• Neutral enough to let noble hops and pale malt shine

Specs

• Strain type: Lager

• Attenuation: 73–77%

• Flocculation: Medium-Low

• Temp range: 45–68°F (7–20°C)

• Alcohol tolerance: 9% ABV

• Cell count: approximately 150 billion cells per homebrew pack

Great for

German Pils, Helles, Dortmunder Export, Vienna Lager, Märzen, American Lager, California Common at 65–68°F

Comparable strains

Wyeast 2124, White Labs WLP830, similar to the popular 34/70 family

Brewer’s tips

• Ferment cool at 48–52°F for the cleanest profile, then raise to 60–65°F for 24–48 hours near the end for a diacetyl rest

• Warm ferments at 65–68°F work for a quick lager-like beer with a touch more ester

• Oxygenate well and consider a starter for higher gravity or colder ferments