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Pinch the stem of the wine glass between your thumb, index finger, and middle finger. As you position your fingers, place them on the lower half of the stem. Your middle finger should rest on the stem just above the base. Only these three fingers will come into direct contact with the stem of the glass. Your remaining two fingers should naturally rest on top of the base. This is the standard way to hold a wine glass. Holding it in this manner should provide plenty of stability while keeping your hands away from the bowl of the glass. Holding a wine glass by the bowl is social taboo, but the reasons for that are as practical as they are polite. Both the taste and appearance of the wine can be negatively impacted when you hold the bowl. When you hold the bowl of the glass, the heat of your hands will quickly cause the wine inside to warm up. This problem is most pronounced when sipping white wine or champagne since these types of drinks taste best when chilled. The problem isn't quite as severe when drinking red wine, but even red wine tastes best when kept a little cooler than room temperature. Additionally, holding the glass by the bowl can leave fingerprints, which makes the appearance of the wine glass less elegant. Both your fingers and the prints they leave behind can also make it harder to examine the color or clarity of the wine.
Hold the stem between your thumb and first two fingers. Never hold the bowl.