For fresh, fruit focused whites – A clean fermenter, rated highly in thiol conversion for optimum varietal expression. Lalvin QA23® has a very high β-glucosidase activity, enzymes which help cleave non-volatile aromatic compounds into their volatile state. Hence this yeast contributes to varietal / terroir fruit expression. It is known to enhance citrus fruit type aromas including lime and grapefruit. Given many terpenes are bound to glucosides, the use of Lalvin QA23® in varieties high in terpenes such as Riesling is highly recommended. This yeast is also a proven thiol converter, hence excellent thiol expression is achieved. Its use for Sauvignon Blanc is therefore highly recommended. A very reliable, clean fermenter, Lalvin QA23® respects varietal fruit character, with minimal yeast flavour contribution. Depending on the terrior, some ester production has been reported.
- Proven thiol converter.
- It is known to enhance citrus fruit type aromas including lime and grapefruit.