If you have entertained before, you might have been confused which piece of stemware to serve. This handy guide will help you tremendously. The different shapes of the stemware serve a purpose. Who knew! The shape of the glass can affect the taste of the beverage it holds. The bowl of the white wine glass is more narrow and shallow than a red wine glass. This shape helps release the bouquet of the white wine more easily, while the bowl of the red wine gives the heavier wine more room to breathe. The differences in champagne classes are more aesthetic in nature, however the narrow rim helps to preserve the champaigne’s effervescence.