LALVIN S6U

LALVIN S6UTM Dry Breeding Yeast – Structure and Complexity for White and Red Wines

LALVIN S6U is a high quality dry cultivated yeast from Lallemand for the fermentation of white, rosé and red wines. The yeast is particularly known for its ability to floral aromas, wort notes and a pronounced structure to develop in wine.

By a relatively high Glycerol production contributes to a fuller mouth feel and more complexity in the wine. At the same time, LALVIN S6UTM works reliably even at low fermentation temperatures and is therefore ideally suited for aroma-oriented white wines.

Specific characteristics

• Natural hybrid of: Saccharomyces cerevisiae × Saccharomyces bayanus
• Promotes floral and spicy aroma profiles
• Increased mouth feel due to higher glycerol production
• Good fermentation performance even at low temperatures
• Low formation of volatile acids
• Low SO2 production

Technical characteristics

• Alcohol tolerance: up to approximately 15 % vol.
• Recommended fermentation temperature: from approximately 5 °C
• Fermentation rate: moderate
• Nutrient requirements: low

Recommended grape varieties

• Chardonnay
• Sauvignon’
• Semillon
• Trebbiano
• Malvasia
• Cortese
• Sangiovese
• Merlot

Application

Recommended dose: 20 – 40 g/hL.

The yeast should be approximately 10 times the quantity of water (35–40 °C) are rehydrated. After about 20 minutes, the suspension can be adjusted stepwise to the must temperature and subsequently stirred into the must.

In difficult fermentation conditions (e.g. high alcohol content or low tart content), it is recommended to use an anti-yeast preparation such as GO-FERMTM during rehydration.

Application areas

• White wine fermentation
• Rosé wine
• Red wine
• Aromatic wines with more structure and mouth feel

LALVIN S6UTM was selected from natural yeast strains in Italy and is particularly suitable for wines in which Complexity, structure and aromatic diversity in the foreground.