A wine glass is a type of glass stemware that is used to drink and taste wine. It is generally composed of three parts: the bowl, stem, and foot. Selection of a particular wine glass for a wine style is important, as the glass shape can influence its perception.
High quality wine glasses once were made of lead crystal, which has a higher index of refraction and is heavier that ordinary glass, but health concerns regarding the ingestion of lead resulted in their being replaced by lead-free crystal. Wine glasses, with the exception of the hock glass, are generally not coloured or frosted as doing so would diminish appreciation of the wine's colour.
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