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News
Guala solves screwcap challenge
Guala Closure Group has unveiled a new range of screwcap liners featuring different levels of oxygen permeability.
The Oenoseal technology, which has now been incorporated across Guala’s screwcap portfolio, is the result of two years research in partnership with Lyon-based firm Manufacture Génerale de Joints.
At present the collection features three options: Oenoseal Onyx, which promises maximum impermeability suited to delicate white or aromatic rosé wines; Oenoseal Ivory, which offers nano-oxygenation for wines and allows the amount of free SO2 to be reduced when bottling; and Oenoseal Coral, which permits a higher level of oxygen to permeate for those wines with high tannin levels that are sensitive to reduction.
Introducing the new collection, Guala Closures Group CEO & chairman Marco Giovanninni commented: “Not only can producers now take advantage of the wide and readily available range of screwcaps that we offer under our Wine Developers platform – including all the branding customisation that our patented technology allows – but they can now also select the exact liner for the exact wine. And all without changing the settings on their bottling lines.”
Describing itself as “the global leader in the production of non-refillable and aluminium closures for wines and spirits”, Guala currently operates 25 manufacturing plants around the world.
VinPerfect in California “solved” this challenge over 3 years ago.
Amcor came out with its own version almost 2 years ago – but that product is not technically competent.
It will be interesting to see how these liners perform, but the industry needs to be wary of claims about products like these that do not include data about the oxygen rates provided – and more importantly, how consistently that oxygen is provided.
Anyone can offer different oxygen levels – offering oxygen levels that actually work in a wine context and that perform consistently is VERY difficult.
Only VinPerfect has proven that they can do this consistently. – And we have done so on tens of millions of bottles of wine.