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Dear Dr. Vinny,

I have been told that wines with high residual sugar are the best for aging. I have a bottle of cream Sherry (from the small Tabor Hill winery of Michigan). How long can the typical dessert wine age before it passes its prime?

—Chris, Boulder, Colo.

Dear Chris,

It's true that, in general, sweet wines tend to age well. However, Sherry is a fortified wine that's already been fully aged before being bottled, so it doesn't benefit from further aging (and runs the risk of becoming oxidized). You should drink up soon—within a year or two or purchase. Once opened, you can store the bottle in the fridge for a few weeks before it turns.

—Dr. Vinny

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