Cup holder The flat cup holder allows the glass to stand upright without turning over, especially when filled with wine. Cup stem The appearance of the stem is to prevent the drinker's hand from contacting with the cup belly, so as to avoid making the cup flower or raising the temperature of the wine by the body temperature. Cup belly The cup belly is probably the most important component of the cup and is also the most stylized. The shape and size of the cup belly affect the concentration and distribution of aroma, the degree of ventilation and the visual presentation effect of wine. The most common shape is tulip, with a slightly wider bottom and a taper near the top. This shape allows people to shake the wine and observe, while the aroma will be concentrated in the narrow opening, directly towards the nose. The wine glasses used for drinking full-bodied red wine are usually wide and complete at the bottom, so that the wine has more contact with the air and provides more emitting space for rich taste and aroma; The bottom of the glass for drinking white wine is relatively narrow, so as to help keep the wine cool and gather lighter fragrance in a smaller space. Champagne glasses are thin and long to show rising bubbles and help keep the temperature low. size Wine glasses come in many shapes and sizes, but there is a rule of thumb that the glass should be large enough so that there is enough space to avoid spillage of wine when shaking the glass, and aroma can also be distributed and gathered in the glass. Color Although colored glasses or those with prominent decorations will be beautiful, the best glasses should be smooth and smooth, and the beauty and fineness of the wine in the glasses can be clearly displayed through the glass wall. Cup opening High-quality wine glasses will have a cut cup mouth, which will feel smooth and will not hinder wine from flowing out of the cup. It should be avoided to use rolled cups or glasses with uneven cups.