Then you’re in luck! Consulting subscribers now have access to my recent article, Wine Lees: A Powerful Tool for Winemakers in the Learning Center that discusses the advantages and disadvantages associated with the use of wine lees during wine production. If you’re looking for a way to make your wine lees work for you, then this Article may help.
If you’re missing out on Denise Gardner Winemaking’s Learning Center, the information at the bottom of this blog post can help you get started!
Lees, or the settled portion of yeast after primary fermentation, offers several opportunities for its continued use through wine production. During good vintage years, clean lees can provide molecular components, such as nitrogen-containing compounds or polysaccharides that naturally alter the wine’s mouthfeel over time. Depending on lees contact time, the mechanism of contact, and the degree of yeast autolysis, lees can also contribute aromas or flavors to the wine that may offer changes in complexity.
Many winemakers opt to keep lees in barrels with the wines intended for longer-term aging, and if they are needed, remove the lees from those wines. A more traditional practice, bâtonnage, is a form of lees contact in which white [Chardonnay] Burgundy wines stored in barrel include routine stirring of the lees. Another great stylistic benchmark region associated with bâtonnage and lees contact is Muscadet produced from the Loire Valley (France). On Muscadet wine bottles, an additional term “sur lie” can be found to indicate this process …