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Lalvin ICV OKAY®

ICV, INRAe and Sup’ Agro Montpellier, France

Specie
Saccharomyces cerevisiae

Competitive Factor
Active

General Sensory Contribution
Clean, fresh, aromatic with some esters

Merlot

Chardonnay

Colombard

Cabernet Sauvignon

Syrah

Ice wine/late harvest

Botrytised grapes

Red Wine

White Wine

Rosé Wine

High Brix Juice

For fresh aromatice and clean, white, rosé and red wines. A QTL yeast with low to no SO2, H2S and acetaldehyde production.

The selection of the LALVIN ICV OKAY™ yeast was the focus of research seeking to identify a new mechanism responsible for the control of SO2 and H2S production in wines. In collaboration with the INRAe and SupAgro Montpellier, France, Lallemand and the ICV have selected LALVIN ICV OKAY™ yeast for its special abilities to produce very low levels of SO2 and H2S while completing rapid alcoholic fermentation under a broad range of winemaking conditions. Furthermore, the low acetaldehyde production of LALVIN ICV OKAY™ yeast is a great asset in helping to stabilize wines with low to moderate SO2 levels. Recommended for fresh and aromatic wines, including high sugar fermentations.

Fermentation Speed
Fast

Lag Phase
Very short

Nitrogen Needs
Low

Alcohol Tolerance
16 %

SO₂ Production
Very low

Max. Temperature
30 °C

Min. Temperature
12 °C

Acetaldehyde Production
Very low

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