QA23 - Chardonnay, Sauvignon Blanc
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 is an excellent choice for wine styles like Chardonnay, Sauvignon Blanc, Sémillon, Chardonel, and Gewürztraminer.
Lalvin QA23 has low nutrient and oxygen requirements, and it has been known to ferment juice at low temperatures (15 °C/59 °F) to dryness. QA23 is an excellent thiol converter making it a complementary yeast for developing varietal Sauvignon Blanc passion fruit character. It also produces large amounts of the enzyme beta-glucosidase during growth, which allows for the release of bound terpenes in aromatic varieties.