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Dear Dr. Vinny,

Do Champagne bottle stoppers really work? Are there any that add carbon dioxide?

—John L., Delta, British Columbia

Dear John,

I’ve had a lot of luck with Champagne stoppers that have a rubber inner ring and two hinges that latch on to the bottle. They don’t add any additional carbon dioxide—no stopper does—but it can help preserve what is there for another day or two. You’ll need to keep that bottle in the refrigerator, since carbon dioxide is more soluble in cold than in warm. A warm bottle of bubbly will get really fizzy, and once that carbon dioxide is forced out and released, it’s gone forever.

Most stoppers cost $10 or less, and there are a range of designs and price tags.

—Dr. Vinny

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