The most recent yeast selection from the ICV, Opale is an interesting strain that has been shown to enhance varietal characteristics in warm weather / high brix grapes which might otherwise produce neutral wines. Particular benefits have been shown in Chardonnay. A great selection for grapes that have ripened a bit too far. This strain has excellent fermentation qualities with a short lag phase and medium nitrogen requirements. Opale can produce significant amounts of SO2 and as such, may inhibit malolactic fermentation. Great strain for Chardonnay, Sauvignon Blanc, and Rose wines. Alcohol tolerant to 14% and temperature range of 59-86°F.,Click here for a PDF of the MoreWine Manual on re-hydrating wine yeast. ,Click here for a PDF of the MoreWine Yeast and Grape Pairing Guide.