After undergoing 1500 dishwasher cycles, Spiegelau stemware was certified as “extremely dishwasher safe” by an independent laboratory. They found no scratching, markings, loss of brilliance, foggy shadows, change in colour or brilliance or build up of water chemicals and residue.
Spiegelau’s remarkable durability can be attributed in large part to the Platinum Glass process. As the glass goes from its powder to its liquid stage, liquid glass is passed through platinum-lined tubes to eliminate any impurities and remove all imperfections and inconsistencies that might otherwise exist. (Platinum prevents leaching that may occur from other equipment linings.) While more expensive, this innovative use of technology proves Spiegelau’s commitment to quality.
To ensure an enduring quality standard, Spiegelau has a strong commitment to its production sites in Germany. Modern technology and optimised machine made production enable Spiegelau to offer high quality products at affordable prices.
Glasses should always be washed carefully, preferably by hand. Because of Spiegelau's Platinum Glass all Spiegelau glasses are 100% dishwasher safe, but they are best cared for by avoiding harsh detergents and choosing a cool, short dishwashing cycle. To avoid detergent residue, rinse glasses thoroughly in clean water. When drying the bowl of the glass, avoid holding the glass by its stem or base as this can, in extreme cases, cause the stem to break at its narrowest point.