Wines Lees: A Powerful Tool for Winemakers … Premium Content Access reserved for Denise Gardner Winemaking Members and Consulting Clients. Related Items:Processing Decisions: Dealing with Botrytis, Gray MoldKey Harvest Operations that Require Practical Cleaning and Sanitation DetailFermentation: Yeast Strain SelectionFormulating Untraditional Wines and Wine ProductsYAN: Nutrient Additions for White Wines