Pilsner I Yeast | Omega Yeast OYL-101
Omega OYL-101 Pilsner I Yeast for Crisp Czech-Style and Clean Golden Lagers
Omega Yeast OYL-101 Pilsner I is a lager strain for brewers chasing crisp, dry, classic pilsner character with a polished fermentation profile. It is a strong fit for Czech-style pilsner, American light lager, and other pale golden lager styles where subtle malt expression, clean attenuation, and traditional lager structure matter more than fruity yeast character.
Based on Omega's published guidance and current technical references, this strain typically delivers 72% to 76% attenuation, medium to high flocculation, up to 9% ABV tolerance, and a recommended fermentation range of 48 to 56°F. Omega also notes that sulfur can be present during fermentation and generally dissipates during lagering, so a proper diacetyl rest and adequate conditioning remain good practice.
What Omega OYL-101 Contributes to Beer
- Classic lager dryness: Helps produce crisp, clean beers with restrained yeast character
- Traditional pilsner suitability: Well suited to recipes where noble hop character and soft malt need room to show
- Polished finish: Good choice for brewers targeting a refined lager profile with proper cold conditioning
- Clean fermentation structure: Supports clear, bright, balanced golden lagers
Omega OYL-101 Specifications
- Attenuation: 72% to 76%
- Flocculation: Medium to High
- Alcohol tolerance: up to 9% ABV
- Fermentation temperature: 48 to 56°F (9 to 13°C)
- Phenolic: No
- Diastatic: No
- STA1: Negative
Best Styles for OYL-101 Pilsner I
- Czech-Style Pilsner
- American Light Lager
- Other crisp golden lagers
Why Brewers Choose OYL-101
This strain is a practical choice when a brewer wants classic lager behavior without unnecessary complication. It is especially useful in clean pale lagers where fermentation character should stay restrained and allow the recipe, process, and conditioning to do the talking.
Liquid Yeast Storage and Shipping
We store liquid yeast in temperature-monitored refrigeration to help protect yeast health until shipment. Once in transit, weather and carrier handling are outside our control, so liquid yeast customers should choose shipping protection based on season, destination, and transit time.
Expedited shipping, insulated mailers, and ice packs can materially reduce risk for liquid yeast during warm-weather transit. Dry yeast is generally much less risky to ship than liquid yeast.
Related Yeast and Brewing Resources
Browse our full Omega Yeast collection for more lager, ale, and specialty strains. You can also review our yeast shipping best practices page before ordering liquid yeast in warmer weather.
If you want a strain for classic crisp pilsner fermentation with traditional lager structure, Omega OYL-101 Pilsner I is a strong choice.