ask dr. vinny

Hello there! I'm Dr. Vinifera, or "Vinny" for short. Ask me your toughest wine questions, from the technical aspects of winemaking to the fine points of etiquette. I hope you find my answers educational and even amusing. Looking for a particular answer? Check my archive and my FAQs.


Dear Dr. Vinny,

If I open a bottle of good Port wine and don't finish it, how long will the remainder last before its quality diminishes? How should I store it?

—Tom B., West Bloomfield, Mich.

Dear Tom,

Tick, tock, tick, tock. There is no single moment when an opened bottle of wine goes from being really fabulous to really awful, but deterioration is inevitable. Do your best to minimize the amount of oxygen the leftover wine is exposed to—you might consider transferring it to a smaller bottle, even if it's just a plastic water bottle with a twist-off cap. In any case, try to finish it within a week.

—Dr. Vinny

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