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Oxygen transfer and wine ageing: the crucial role of the glass-cork interface

Julie Chanut - University Bourgogne Franche Comté, UMR PAM Dijon - France

Oxygen transfer and wine ageing: the crucial role of the glass-cork interface

Sporadic oxidation of white wines remains an open question, making the shelf life of wine a subjective debate. Through a multidisciplinary and synoptic approach, carried out as an extraordinary case study on aged white wine bottles, this work unveiled an unexplored pathway for uncontrolled oxidation. The objective was to characterise the contribution of corks to the ageing of white wine bottles, with a focus on the glass-cork interface. Oxidation was observed in a number of white wine bottles from the same vintage and production batch. To investigate this phenomenon, a multidisciplinary approach was designed combining sensory evaluation, chemical analysis and physical investigation with the wine and cork compressed in the bottle neck. 

Video extract from the presentation given during Enoforum Web Scientists (13 March 2023)

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Published on 03/14/2024
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