• Sourvisiae® is a modern fermentation solution that produces sour beers through one simple fermentation step
• Clean and neutral flavor, ideal for traditional and modern sour beer styles and an excellent base for fruited sours
• Sourvisiae® is a bioengineered (GMO) strain of Saccharomyces cerevisiae
• Lallemand premium brewing yeast offers brewers unmatched consistency, reliability and purity from one batch of beer to the next

Sourvisiae® is a bioengineered ale yeast strain (Saccharomyces cerevisiae) capable of producing lactic acid during fermentation to provide brewers with an easy, reproducible, and mono-culture product for sour-style beer production.

Sourvisiae® contains a single genetic modification, a lactate dehydrogenase gene from a food microorganism, which enables the yeast to produce high levels of lactic acid, the main compound that gives sour beers their flavor. Sourvisiae® allows the brewer to ferment and sour the beer in one simple step, reducing cross-contamination risks, lowering costs, cutting total process time, and allowing brewers to obtain a consistent product. The brewing process is conducted without any modifications; Sourvisiae® is pitched just like conventional yeast and ferments in a normal fermentation time. Sourvisiae® does not produce other flavor compounds associated with Brettanomyces, Lachancea, or Lactic Acid Bacteria, providing a cleaner and more reproducible souring process, with much shorter fermentation times.

Microbiological Properties
Classified as a bioengineered Saccharomyces cerevisiae, a top-fermenting yeast. Finished product is released to the market only after passing a rigorous series of tests. *According to the ASBC and EBC methods of analysis.

Flavor and Aroma
Tangy, sour, slightly fruity

NOTE: THIS PRODUCT IS ONLY ELIGIBLE FOR SHIPMENT IN THE UNITED STATES.