Wines Lees: A Powerful Tool for Winemakers … Premium Content Access reserved for Denise Gardner Winemaking Members and Consulting Clients. Related Items:YAN and Primary Fermentation Nutrient AdditionsYAN: Needing Nutrient AdditionsFREE: Fermentation Nutrition: What to Know and Why to Know ItFREE: Are Eastern-Produced Wines a New World Style?2018 Wine Products of Interest