YAN and Primary Fermentation Nutrient Additions … Premium Content Access reserved for Denise Gardner Winemaking Members and Consulting Clients. Related Items:Wines Lees: A Powerful Tool for WinemakersProcessing Decisions: Dealing with Botrytis, Gray MoldSO2 Additions to WineFREE: Fermentation Nutrition: What to Know and Why to Know ItSO2 Parts (Adjusting SO2)