Diam Bouchage or 20 years of innovation.
The French cork manufacturer, emerging from the innovative and groundbreaking DIAMANT® process that revolutionized the cellaring of bottled wines, has always made research and development a priority, and this has led to a genuine transformation in the cork closure market. Beyond the continuous improvement of its manufacturing processes’ economic and environmental performances, the company has, for several years, been focusing on 3 key lines of research in order to address challenges faced by the winemaking sector: gas exchange management, natural raw materials and closure aesthetics.
Over the past few months, the company has begun offering a new permeability for its Diam 10 and 30 closures and has also broadened its “Origine by Diam” bio-sourced range of closures. On top of that, during the Vinitech Trade Show in Bordeaux, Diam Bouchage unveiled the prototype of a new closure that the company is currently developing in the aesthetics department.
Collection by Diam, the making of a unique closure.
The Diam Collection closure has a core of Diam micro-agglomerated cork that is clad with an elegant, thin sheet of carefully selected cork. The high-precision cladding technique used to cover each surface of the closure (the two ends and the body) has been specially developed and is covered by a European patent.
This closure, unique for its visual appeal and technological ingenuity, has been designed to fully meet the technical requirements and aesthetic expectations of winemakers seeking to embellish each of their bottles with the natural and singular charm of traditional closures.
The Diam Collection is an uncompromising closure.
It reflects the technological prowess that Diam Bouchage has displayed for over 20 years, combining a purified cork core and cladding, devoid of any trace of TCA, the element responsible for cork taint. The cork sheets are treated with the same technological process using supercritical CO2 at differentiated pressure, still unique in the market, which has been adapted to cleaning the cork sheets.
“Numerous studies demonstrate the absence of any correlation between visual surface defects of a traditional closure and its mechanical performances. It is, therefore, complicated to determine the true quality of a so-called natural closure. The Diam Collection is the solution to this issue!” enthuses Christophe Loisel, R&D Director at Diam Bouchage.
The meticulous manufacturing process perfected by Diam, guarantees control and consistency of the physical properties from one closure to the next, in terms of mechanical performances and oxygen transfer. As with the brand’s other closures, this is the winemakers’ guarantee of being able to control the aging of their wines in the bottle and refining their creations from A to Z.
Collection by Diam: The French excellence.
This new technological cork closure has been called Diam Collection because it embodies French expertise and excellence; from design to manufacture, it fits seamlessly into the Diam range and it will surely become a wine cellar essential for any winemaker seeking to delight both the taste buds and eyes of wine enthusiasts.
“Beyond the unique aesthetics offered by nature, we had to provide the quality and high performance of our long-established products. By combining the best of both worlds, Collection by Diam is today the quintessential reflection of Diam Bouchage’s DNA,” says Eric Feunteun, CEO of Diam Bouchage.
Each closure is a unique and precious item, becoming a considerable and appealing asset for the world greatest wines. This solution has revolutionized corking, aging and opening a bottle of great wine, even years later. Collection by Diam enhances these moments of truth, from the last enological act to the first gesture before tasting.
Diam, the new tradition.
The Diam Collection closure will be on the market at the end of 2025, initially in a DIAM 30 49 mm. It will then be developed for other Diam closures.
In the meantime, the company will soon have new announcements in the coming months for the sparkling wine market. The French cork closure manufacturer has a clear objective: remaining the leader of innovative solutions that make corking a bottle an enological act, while responding to the issues faced by winemakers around the world.
