Premier Blanc (Champagne) Wine Yeast. All-purpose and vigorous, a moderately foaming and sulfite-tolerant strain useful in producing white and red wines. Extremely good fermenter. Very high alcohol tolerance. Recommended for treating stuck fermentations. 50-95 °F (10-35 °C) 18%. Each pack is good for up to 5 gallons of fruit must and 6 gallons of concentrate kit juice.