Sur lie (French for "on the lees") describes wine left in contact with dead yeast cells and sediment after fermentation, rather than being racked off immediately. Extended contact with lees enriches wine with texture, complexity, and savoury flavours through autolysis—the breakdown of yeast cell walls. The duration varies: Muscadet is classically aged sur lie for months, white Burgundy for weeks to months, and champagne for years. Sur lie ageing adds creamy, brioche-like notes and improves mouthfeel and ageing potential.
WHY IT MATTERS FOR COLLECTORS
Wines aged sur lie typically show greater complexity and texture than early-racked alternatives. This practice is a hallmark of careful winemaking and correlates with wines that age well, particularly white Burgundy and champagne.
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