The Austrian family business Riedel (since 1756) is famous for its wine glasses. At Riedel it is believed that the glass is very important to optimally show a wine. This opinion is shared by many winemakers and journalists. All glasses made by Riedel have been developed for specific wines made from the best-known grape varieties. Each glass has been developed in such a way that it allows a particular grape variety to perform optimally. The glasses were therefore not designed on the drawing board but as a result of extensive test sessions. The content determines the form.