Lallemand Sourvisiae Yeast

Brew clean, balanced sour beers in a single fermentation step with Lallemand Sourvisiae Yeast. This innovative dry yeast produces both lactic acid and alcohol simultaneously, eliminating the need for kettle souring while delivering consistent acidity and reliable fermentation performance.

Sourvisiae is intended for brewers who want a streamlined approach to sour beer production without introducing bacteria or additional process steps. By combining souring and fermentation into one controlled phase, it helps reduce variability while maintaining clean flavor expression and predictable results.

This yeast performs best within a fermentation temperature range of 59 to 72 degrees Fahrenheit and tolerates alcohol levels up to approximately 12 percent ABV. Each packet is suitable for fermenting up to five gallons of beer and supports fast, efficient sour ale production.

For best results, pitch according to manufacturer recommendations and maintain fermentation temperatures within the suggested range. Standard fermentation practices will allow acidity and alcohol to develop together in a balanced, integrated profile.

Produced to professional brewing standards, Lallemand Sourvisiae Yeast provides a practical solution for brewing Berliner Weisse, Gose, and other quick-turnaround sour ales with clean acidity and consistent quality.