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S. cerevisiae • bayanus Chardonnay, Sauvignon Blanc, Gewürztraminer, Pinot Blanc, Albariño, Muscat, Aromatic Whites Selected in Portugal by the University of Trás-os-Montes and Alto Douro (UTAD) in cooperation with the Viticultural Commission of the Vinho Verde region. Lalvin QA23™ has low nutrient and oxygen requirements. It has been known to ferment juice at low temperatures (15°C/59°F) to dryness. Excellent thiol converter making it a complementary yeast for developing varietal Sauvignon Blanc passion fruit character. Produces large amounts of the enzyme beta-glucosidase during growth which allows for the release of bound terpenes in aromatic varieties.