CRITICAL DECISIONS

How Do You Choose a Closure for an Age-Worthy Wine?

The key factors to consider before bottling

October 2026

The wine’s profile, ageing potential and closure type are key factors to consider before bottling.

Choosing a closure for an age-worthy wine involves considering the wine’s profile, its intended evolution and the conditions in which it will be stored. The closure should meet the needs of each wine and the winery’s expectations for its development over time.

The Wine Comes First

Not all wines have the same ageing potential. Some are intended for early consumption, while others are designed to evolve over several years. Choosing the right closure requires consideration of the wine’s composition and the sensory profile the winemaker wants to preserve.

Managing Oxygen During Bottle Ageing

During bottle ageing, oxidative and reductive processes can influence a wine’s sensory profile. In natural cork closures, some of the oxygen present in the system is contained within the cork’s structure and is released after bottling. This needs to be distinguished from oxygen that may subsequently enter through the closure system.

Oxygen transfer data published by different closure manufacturers are not always directly comparable, as measurement methods, test conditions and calculation criteria may vary. A single figure does not determine which closure is most suitable. It is important to understand how the data were obtained and interpret them in relation to the wine and its intended ageing period.

Consistency Matters Too

Alongside expected performance, variability between individual closures is an important consideration. Wineries need bottles from the same batch to evolve consistently. With natural cork, raw material selection and quality controls—including dimensional checks and physical property assessments—help establish whether the cork is suitable for its intended use.

In addition to testing for 2,4,6-trichloroanisole (TCA), J·Vigas uses manual sensory inspection to detect other sensory deviations.

Bottle Format and Bottling Conditions

Closure performance also depends on the bottle-and-closure combination: neck geometry, cork dimensions, insertion conditions and the bottling process itself. The intended storage period, transport and storage conditions must also be considered, including temperature and temperature fluctuations.

A Selection Criteria Tailored to Each Winemaking Project

Choosing a closure does not depend on a single measurement, but on assessing the wine’s profile, intended ageing period, closure performance, quality controls and bottling conditions together. At J·Vigas, this process aims to match natural cork selection to the specific needs of each wine.

For this reason, we recommend placing orders at least two months before the planned bottling date. This lead time allows the J·Vigas team to assess the wine’s requirements and prepare a selection suited to each winery’s winemaking project.