This oxygen-vacuuming wine stopper can keep a bottle fresh for a month — and it costs $2.50

• Alessia Antinori and her sisters are the 26th generation in charge of Marchesi Antinori, a 630-year-old Florence-based vineyard and winery.
• I sat down with Alessia at Tutto il Giorno in Tribeca this winter to discuss the finer points of wine drinking and treatment.
• The one wine accessory she can't do without? A $2.50 wine stopper from Repour.

This content is intended for readers 21+. Please drink responsibly. If you or anyone you know is dealing with alcohol abuse, get help. The Substance Abuse and Mental Health Services Administration's National Helpline at 1-800-662-HELP (4357) provides a free, confidential, 24/7, treatment referral, and information service.

Alessia Antinori is the first female vice president at the head of Marchesi Antinori, her family's 630-year-old wine house, and apart from continuing and expanding the tradition of making wine, she also has a few ideas about drinking and preserving it.

Raised in Palazzo Antinori, her family's 15th-century palace in Florence, Italy, she grew up living and breathing the business of growing grapes, and vehemently believes winemaking is an art form. Wine accessories, however, are outside of this 26th-generation vintner's wheelhouse. Always an advocate for simplicity, Antinori says red wine glasses work equally well for all wines. And if you're a champagne or sparkling wine drinker who must add a second style of stemware to your cabinet, you have her permission to skip the champagne flutes: white wine glasses leave more room for air, allowing your bubbly to breathe.

All of that being said, there is one trusty little wine device Antinori finds indispensable: this oxygen-vacuuming bottle stopper from Repour, which comes in a $10 four-pack (meaning each individual stopper is $2.50).

You might be thinking, "But I have a wine stopper already." So did we, but Repour's not only prevents the flow of oxygen into a bottle, it actively expels it from your wine. As a result, Antinori explained, you can preserve a bottle of wine well into the next month, and perhaps even longer.

The Repour stopper absorbs oxygen from up to 1500ml of air (that's a magnum bottle, if you're curious). And while it may be fun to down an entire bottle — even a magnum, on the odd occasion — in one sitting, it's a relief to know that you and your guests don't have to. You can plug up your bottle with one of these doodads and go to bed knowing full well that both you and your precious wine will be no worse for wear tomorrow (or the next night, or the night after that, or weeks down the line).

Another trick of the trade from Alessia Antinori: double-decant all of your wines. Meaning, when you open your bottle, pour it into a decanter, let it settle some, and then pour it back into its bottle. You're welcome.