We strongly endorse the use of a commercial wine yeast in the fermentation of a grape juice. These wine yeasts have been carefully cultured to accentuate positive fermentation properties such as more efficient sugar-alcohol conversion, low hydrogen sulphide production, compact lees and SO2 tolerance. We recommend the addition of a commercial nutrient to reduce the likelihood of a stuck or sluggish fermentation and to minimize the production of sulphide (from nutrient deficiency). Nutrients should be added prior to the start of fermentation.
For information and characteristics of each yeast, please visit www.lallemandwine.com.