Why do people swirl their wine?

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You see it in fancy restaurants all the time: a customer “swirls” the wine in the glass before they taste it. But do you really need to do that?

Wine expert Adam Acquistapace explains why in this edition of Uncorked.

The wines Adam uses this week are:

Louis Jardot
Chablis 2010

Rombauer Vineyards
Napa Valley