Omega Yeast - OYL-201 - Brett. Claussenii

Brett. Claussenii is the mildest funk on the Brett spectrum. It brings a gentle leathery earthiness with a touch of pineapple rather than the full barnyard blast.

Best For Mixed-fermentation saisons, Brett IPAs, and any beer where you want subtle Brett character without overwhelming funk.

Hard Specs

• Liquid yeast — requires fast shipping* (see Important Shipping Notes below)
• Attenuation: 85%+
• Flocculation: Low
• Temperature Range: 70–85°F
• Alcohol Tolerance: Up to 11% ABV
• More tech specs

Flavor Behavior Mildest Brett funk. Leathery earthiness with some pineapple notes. Works in both primary and secondary.

In Practice Low-flocculating Brett strain for controlled, subtle funk. Usually used in secondary for mild character development, but can go in primary for lighter Brett presence. Mild funk usually becomes noticeable in 4–8 weeks and can continue developing for several months. High attenuation helps dry beers out nicely.

Pitching 100 mL homebrew pack for 5 gallons up to approximately 1.060 OG. Direct pitch liquid culture. Often pitched in secondary for more controlled funk development.

Important Shipping Notes During warm weather, liquid yeast ships separately from the rest of your order. We use minimum USPS Priority Mail (1-3 days) with 2-day and overnight options available. See our full liquid yeast shipping policy for current cutoff times and heat mitigation details. Does not apply to pickup orders.