Skip to main content

The Globe and Mail

Do I have to store bottles sealed with plastic corks horizontally?

The question

Do bottles sealed with plastic corks have to be stored horizontally in my cellar?

The answer

Story continues below advertisement

No. But you might have a hard time discerning which are sealed with synthetic versus natural cork.

Unlike screw caps, synthetic corks fit into the bottle neck and look like traditional cylindrical corks. (Some are coloured neon purple or green, but increasingly they're disguised in the beige hue of traditional cork.)

In contrast to the natural stuff, they need not be kept moist to stay resilient and maintain their seal. At least that's the conclusion of Nomacorc, the world's largest producer, which turns out 2.4 billion closures a year.

According to Jeff Slater, Nomacorc's director of global marketing, the company has measured the so-called oxygen-transmission rate, or OTR, of sample bottles over 10 years using a Mocon permeation-testing device. He says there is no difference between bottles stored horizontally or vertically.

Nomacorcs simply do not dry out. And I suspect that's the case for all other synthetic closures.

E-mail your wine and spirits questions to Beppi Crosariol. Look for answers to select questions to appear in the Wine & Spirits newsletter and on The Globe and Mail website.

Report an error Licensing Options
About the Author
Life columnist

Beppi Crosariol writes about wine and spirits in the Globe Life and Style sections.He has been The Globe's wine and spirits columnist for more than 10 years. In the late 1990s, he also wrote a food trends column called The Biting Edge.Beppi used to cover business law for ROB and previously edited the paper's weekly technology section. More


The Globe invites you to share your views. Please stay on topic and be respectful to everyone. For more information on our commenting policies and how our community-based moderation works, please read our Community Guidelines and our Terms and Conditions.

We’ve made some technical updates to our commenting software. If you are experiencing any issues posting comments, simply log out and log back in.

Discussion loading… ✨