¿CÓMO SE CONSTRUYE LA LONGEVIDAD DE LOS VINOS BLANCOS DE BORGOÑA? (FR)
ENOFORUM 2026_MIÉRCOLES 20 DE MAYO, AUDITORIO, 13.30 h

How is longevity of Burgundy white wines built?
Domitille Brosseau_Comité des vins de Bourgogne (Francia)
Christine Lagarde Pascal_Vinventions (Francia)
Wine is the result of a complex balance between compounds that is influenced by winemaking practices. In 2020, the Comité des Vins de Bourgogne launched a project aiming to understand how the longevity of white Burgundy wines is built, and at which stages of winemaking.
The longevity of a wine is linked to its intrinsic sensitivity to oxidation and to the more or less oxidative conditions it undergoes during storage. The bibliography describes in detail the impact of oxygen on the evolution of wines in bottle, whether the oxygen intake is linked to bottling or to transfer via the obturator. Beyond the contribution of oxygen, polyphenols have been shown to be involved in wine oxidation mechanisms, which can lead to a deterioration in the organoleptic properties of the final product.

This project, called VOLTA, was carried out in partnership with some forty partner wineries spread across the whole of Burgundy (from Mâcon to Chablis) and representative of the region’s different types of winery (négociants, caves coopératives, domaines). The measurements were carried out in the cellar, in order to better explore the reality of Burgundy practices, using a technology that allows measurement without prior sample preparation (electrochemistry) and on a sufficiently large number of juices to allow statistical processing of the data.
Aim of this project was to determine how longevity of Burgundy white wines is built, from harvest to bottling and to point out critical steps and practices. The results presented below correspond to six vintages of data collection (2020 to 2025). They highlight impact of prefermentatives practices on resistance to oxidation, as well as influence of ageing methods on longevity.

