by Erika S., Wine Enthusiast Companies
A Tastevin is a silver wine-tasting cup that hangs from a chain, like a necklace. Tastevins were originally used in dark wine caves in Burgundy. The dimples at the bottom of the tastevin caused light to reflect in the wine so the winemaker could assess clarity.
Though typically considered to be an old-fashioned style, some sommeliers still wear them, though they serve little purpose.