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Lalvin QA23, selected on soil types from the area of the appelation of Vinhos Verdes in Portuga offers qualities of fermentive security bound to a weak demand in assimilable nitrogen and O2.
Lalvin QA23 is an excellent choice for wine styles like Chardonnay, Sauvignon Blanc, SÃ©millon, Chardonel and GewÃ¼rstraminer.
Lalvin QA23 has low nutrient and oxygen requirements and it has been known to ferment juice at low temperatures (15C/59F) 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 whch allows for the release of bound terpenes in aromatic varieties.
Temperature Range of fermentation: 15C-32C
Fast fermentation speed
Tolerance to alcohol: 16%
Low nutitional requirements