How many hours should a bottle of Sauvignon Blanc be chilled?

A) 1 hr
B) 1.5 hrs
C) 2 hrs
D) 4 hrs

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The answer is:
C) 2 hrs

White wine serving temperatures vary depending on what wine it is:

1hr for full dry whites (Chardonnay)
1.5 hrs for medium bodied dry white wines (Viognier) and sparkling reds
2 hrs for light dry white wines (Sauvignon Blanc, Pinot Grigio) and full sweet wines (Sauternes)
4 hrs sparkling wines (Champagne, Prosecco)
4+ hrs light sweet wines (German Spätlese)

Temperature impacts the smell and acidity levels of white wines, so different chilling times are recommended for different flavor profiles. In red wines, the tannin levels are similarly affected.