Discovery / Methodology / Aging on the Lees
Meet the method · Follow your curiosity
Aging on the Lees
Resting wine on its fermentation sediment can add texture and complexity, from the rounded feel of a white wine to the bready character of some sparkling wines.
A little acquaintance, at a glance.
- Lees are
- Settled fermentation material
- Possible effect
- Texture and complexity
- Label clue
- Sur lie means on lees
- Stirring term
- Bâtonnage
From the cellar to your glass
A choice that shapes the wine.
After fermentation, yeast cells and other fine particles settle out of the wine. This sediment is called lees. A winemaker can separate the wine from it or keep some of that contact as part of the wine’s maturation.
Fine lees are an ingredient in the process rather than an ingredient poured into a finished glass. Contact over time can change texture and aroma. The effect depends on the wine, the lees, the vessel and the length and management of the contact.
How the method works.
Choose what stays
Lees include yeast cells and other material from fermentation. Makers distinguish coarser deposits from finer lees and decide what to retain. Keeping every bit of sediment is not the goal.
Allow time for change
As yeast cells break down, components can be released into the wine. This can influence mouthfeel and aroma. Lees contact can take place in barrels, tanks or, for traditional-method sparkling wines, bottles.
Stir, or leave it settled
Some makers stir the lees, a practice called bâtonnage. Others leave the wine undisturbed. Stirring is a choice with trade-offs, rather than an automatic requirement for a rich or high-quality wine.
What to notice in your glass.
Texture before flavour
Notice whether the wine feels broader, smoother or more rounded. Those sensations can have several causes, so texture alone does not prove lees aging.
Bread in a sparkling wine
Extended bottle contact with yeast lees can contribute bread, biscuit or brioche-like notes. Their intensity varies, and fruit remains part of the picture.
Freshness still matters
A textured wine can also be lively and mouth-watering. Lees contact does not mean sweetness, and it does not require an oaky flavour.
A small Cork Dork discovery
Try a little discovery.
Look for a producer offering two comparable white wines with different lees treatments, or ask a tasting room to explain its approach. Taste for texture before reading the notes. If comparing unrelated bottles, treat the exercise as a conversation about possibilities rather than proof of one technique.
Small pours, your own words, and no marks for impressive vocabulary.
A few questions worth uncorking.
Will the finished wine contain visible lees?
Not necessarily. Many wines are separated from their lees before sale. Some deliberately retain sediment, but lees aging does not mean every bottle will be cloudy.
Are lees and grape skins the same thing?
No. Lees are sediment after fermentation; skins are grape material used in maceration. Lees can contain several kinds of particles, but the techniques describe different choices.
Is lees aging the same as malolactic conversion?
No. Lees aging concerns contact with sediment. Malolactic conversion changes malic acid to lactic acid through bacterial activity. A wine may undergo both.
Where shall we wander next?
Chardonnay →Chenin Blanc →Still White Wine →Sparkling Wine →Oak & Stainless Steel →Making Bubbles →Behind this introduction
Editorial sources checked 15 October 2026. Methods vary with grape, producer and intended style; tasting clues are possibilities rather than proof.
Follow the movement of the lees.
Lees Stirring / Bâtonnage → explores resuspension, texture and the choice to leave lees resting. Compare Malolactic Fermentation as a separate process.