Product details

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Lalvin S6U

Selected by Istituto Sperimentale Enologia de Velletri - Italy

Specie
Saccharomyces cerevisiae uvarum

Competitive Factor
Sensitive

General Sensory Contribution
Enhances varietal aromas

White Wine

Rosé Wine

For unique structural and flavour complexity in dry white wines

S6U is a natural hybrid between S. cerevisiae and S. bayanus (formerly S. uvarum). Predominantly used in the production of dry white table wines, chiefly Chardonnay and Semillon, S6U is well recognised for imparting unique organoleptic characteristics - particularly flavour complexity and soft / smooth mouthfeel - that are associated with fermentation and autolytic by-products. Also enhances varietal characters, with an emphasis on floral and spicy notes. Ethyl esters and aromatic alcohols add dimension to barrel fermented Chardonnay. S6U is a slow starter of alcoholic fermentations, has a moderate fermentation vigour.

Fermentation Speed
Moderate

Glycerol Production
Very high

Lag Phase
Moderate

MLF Compatibility
Recommended

Nitrogen Needs
Low

Alcohol Tolerance
15 %

Volatile Acidity
Very high

SO₂ Production
Low

Max. Temperature
30 °C

Min. Temperature
10 °C

H₂S 170ppm
Low

H₂S 60ppm
Low

Suitability for co-Inoculation
Very recommended

Reaction to O₂ addition
Low

Acetaldehyde Production
Moderate

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