Bâtonnage

Bâtonnage is the deliberate, rhythmic stirring of wine lees back into suspension after they have settled. The tool used is a bâton — traditionally a long-handled wooden stick, though modern cellar workers may use stainless chains, paddles, or mechanical stirrers. The goal is to keep the fine lees (principally dead yeast cells) in contact with the wine rather than allowing them to compact at the bottom, where autolytic breakdown would occur more slowly and unevenly. When lees are stirred back into suspension, the ratio of yeast cell surface area to wine volume increases, accelerating the release of mannoproteins, beta-glucans, polysaccharides, and amino acids into the wine. These compounds coat the palate, soften acidity's sharpness, add mid-palate weight, and generate brioche, hazelnut, and cream aromas. The winemaker chooses timing and frequency carefully: weekly bâtonnage for 3–6 months is common in Meursault and Puligny-Montrachet; some producers stir daily early in the process then trail off. Excessive stirring of reductive barrels can introduce off-aromas (hydrogen sulfide, reductive notes); too little defeats the purpose. Bâtonnage is primarily associated with white Burgundy Chardonnay, but it is also used for barrel-fermented Roussanne, Viognier, white Bordeaux blends, and increasingly, serious natural wine producers seeking texture without oak input. It is less common in red wine production, where tannin structure already provides body.

“The cellar master performed bâtonnage every Thursday morning throughout the winter, drawing the bâton through each barrel to coax the settled lees back into the golden Chardonnay — a ritual aimed at that signature Meursault richness.”

• glossaryLees Aging / Sur Lie
• glossaryAutolysis
• techniquesBarrel Aging

1. 1.Clive Coates MW — 'Côte d'Or: A Celebration of the Great Wines of Burgundy' (1997), University of California Press
2. 2.Jancis Robinson — 'The Oxford Companion to Wine', 4th ed. (2015), Oxford University Press
3. 3.Émile Peynaud — 'Knowing and Making Wine' (1984), Wiley
4. 4.Jasper Morris MW — 'Inside Burgundy' (2010), Berry Bros & Rudd Press

Confidence: high