The machine-made Shiraz glass of the technologically advanced glass collection Performance is the new ultimate loudspeaker for fine wine. The shape of the glass optimal delivers the classic aromas of toast and black olives, which are typical for wines made of Shiraz grapes. On the palate, it brings out the wine's silky, velvety structure and balanced flavours. The tannins melt into the fruit, appearing sweet rather than acerbic on the back palate. Performance is the first RIEDEL wine glass series ever to feature bowls with a light optic impact, which not only adds a pleasing visual aspect to the bowl, but also increases the inner surface area. All RIEDEL glasses are dishwasher safe.