Brettanomyces claussenii | Omega Yeast OYL-201
Omega OYL-201 Brettanomyces Claussenii for Fruit-Forward Brett Character
Omega Yeast OYL-201 Brettanomyces claussenii is a milder Brett strain for brewers who want tropical fruit character, gentle funk, and added complexity without pushing a beer deep into aggressive barnyard territory. It is a strong choice for mixed-fermentation beers, Brett-conditioned saisons, and farmhouse ales where nuance matters more than sheer intensity.
Based on Omega's published guidance and current retailer technical references, this strain offers 80%+ attenuation, low flocculation, up to 12% ABV tolerance, and a recommended fermentation range of 68 to 80°F. It is especially useful when you want Brett character that stays expressive, fruity, and comparatively refined.
What Omega OYL-201 Contributes to Beer
- Fruit-forward Brett profile: Tropical fruit and light stone fruit notes can develop alongside subtle earthy complexity
- Milder funk: Adds Brett character without overwhelming the base beer
- Mixed-fermentation flexibility: Useful in primary or secondary depending on process goals
- Strong attenuation: Helps beers finish dry and layered over time
Omega OYL-201 Specifications
- Attenuation: 80%+
- Flocculation: Low
- Alcohol tolerance: up to 12% ABV
- Fermentation temperature: 68 to 80°F (20 to 27°C)
Best Uses for OYL-201 Brettanomyces Claussenii
- Farmhouse Ales
- Mixed Fermentation Beers
- Brett-conditioned saisons
- Wild ales needing restrained funk
- Creative primary or secondary Brett fermentations
Why Brewers Choose OYL-201
This strain is a practical fit when a beer needs Brett complexity but you want the fruit and aromatics to stay in front of harsh funk. It can add depth, dryness, and a distinctly Brett-driven fermentation profile while staying more approachable than some more aggressive wild strains.
For brewers who want to explore Brett character with more tropical fruit and less heavy funk, OYL-201 is a smart place to start.
Liquid Yeast Storage and Shipping
We store liquid yeast in temperature-monitored refrigeration to help preserve 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, route, 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 Brett, farmhouse, and specialty strains. You can also review our yeast shipping best practices page before ordering liquid yeast in warmer weather.
If you want Brett complexity with tropical fruit, restrained funk, and flexible mixed-fermentation use, Omega OYL-201 is a strong option.