We do not recommend using a dishwasher for any crystal glasses. The Waterford Crystal Ardan Tonn Tall Champagne glasses are perfect for that celebratory fizz and are a tall well balanced glass This striking modern design is inspired by the rivers and streams that flow from the mountains to the Atlantic Coast near to the home of Waterford Crystal. These Champagne glasses should be used for all occasions and not just kept for best. It will make Champagne drinking even more pleasurable.