Amalgamation II Brettanomyces Blend | White Labs WLP4641
White Labs WLP4641 Amalgamation II for Evolving Brettanomyces Character and Dry Wild Beer Fermentation
White Labs WLP4641 Amalgamation II is a Brettanomyces blend for brewers who want complex wild fermentation character with strong attenuation, low flocculation, and a profile that keeps changing as the beer matures. White Labs positions this blend as a specialty Brett culture suited to brewers building mixed fermentation, farmhouse, and wild beer programs with long-range flavor development in mind.
This blend is associated with approximately 82% to 86% attenuation, low flocculation, and a working range around 70 to 80°F. It is a good fit for beers where funk, fruit complexity, dryness, and time-dependent evolution are part of the desired result rather than a flaw to be avoided.
What White Labs WLP4641 Contributes to Beer
- Complex Brett expression: Wild character that can build with time instead of peaking immediately
- Drying power: High attenuation helps push beer toward a more complete, developed finish
- Strong use in mixed fermentation: Works well in projects where the culture is expected to shape the beer over time
- Farmhouse and wild-beer relevance: Good fit for saisons, farmhouse ales, wild ales, and experimental specialty beer
White Labs WLP4641 Specifications
- Attenuation: 82% to 86%
- Flocculation: Low
- Alcohol tolerance: High
- Fermentation temperature: 70 to 80°F (21 to 27°C)
Best Uses for WLP4641 Amalgamation II
- Mixed fermentation ales
- Farmhouse ales
- Wild ales
- Brett-forward specialty beers
- Experimental long-aging projects
Why Brewers Choose Amalgamation II
This blend is useful when the brewer wants a culture that brings more than simple dryness or blunt funk. In the right process, it can help create beer with developing layers of character that reward time and careful handling.
It is best used by brewers who understand that Brett beer can continue evolving in tank, package, and cellar, and who want that evolution to be part of the result.
Liquid Culture Storage and Shipping
We store liquid cultures in temperature-monitored refrigeration to help maintain viability until shipment. After shipment, weather and carrier handling are outside our control, so customers should choose shipping protection based on route, season, and transit conditions.
Expedited shipping, insulated packaging, and ice packs can help reduce risk for liquid cultures in warm weather. Dry yeast is generally much less risky to ship than liquid cultures and liquid yeast.
Related Yeast and Brewing Resources
Browse our full selection of White Labs strains for more wild, Brett, and clean fermentation options. You can also review our yeast shipping best practices page before ordering liquid cultures in warmer weather.
If you want a Brett blend with high attenuation and room to develop layered wild character over time, White Labs WLP4641 Amalgamation II is a strong specialty culture.