The Closure Wars

Wine Closure Wars

The “new holy wars of wine” is the debate among producers, critics and customers on the best way to seal a wine bottle.

Proponents of screw caps claim that the TCA problem of corks is much larger than the oxygen issues with screw caps. Some winemakers have even started changing the way they make wine, in an effort to overcome the potential reduction with current screw cap closures.
Opponents argue that cork taint and significant bottle-to-bottle variation are the acceptable and even traditional drawbacks of wine. They would rather roll the dice with a few bottles than subject 100% of their wines to a low-oxygen closure that will impede in-bottle development.

See Also: “What Have the Scientists Done For Us? Advances in wine science...”

Closure choice greatly influences wine aging: What is not debated is that the closure has a significant effect upon what is happening inside the wine bottle during aging. Numerous studies have shown that screw caps allow significantly less oxygen to diffuse into the bottle than bark corks. Plastic corks, on the other hand, allow significantly more oxygen into the bottle. Bark corks admit highly variable amounts of oxygen, depending on the individual cork.

VinPerfect’s mission is to deliver a closure that is reliable and doesn’t limit the winemaker’s choices. If anything, we hope that the control our closure provides will allow winemakers to express themselves more freely and to make every bottle of wine better.

Closure Comparison:
Years to 5PPM Oxygen

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“The fundamental goal of our research was to determine the oxygen transmission rate (OTR) of a number of candidate materials and combinations of materials.”

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The Closure Wars

Wine Closure Wars

Closure Comparison:Years to 5PPM Oxygen

“The fundamental goal of our research was to determine the oxygen transmission rate (OTR) of a number of candidate materials and combinations of materials.”

— Annegret Cantu, VinPerfect Director of Research

Closure Comparison:
Years to 5PPM Oxygen