While some double-walled glasses may be labeled as dishwasher safe, it is generally advisable to hand wash these delicate items to avoid any potential damage. The high temperature and rapid temperature fluctuations in dishwashers can compromise the integrity of the glasses, leading to breakage or loss of insulation properties.
Double-walled glasses offer a unique and practical way to enjoy your favorite beverages. While they may be tempting to clean in the dishwasher for convenience, it is essential to consider the material composition, manufacturer’s instructions, and dishwasher temperature before making a decision. By following the recommended hand cleaning method, you can help ensure the longevity and performance of your double-walled glasses, allowing you to continue enjoying your favorite drinks at the perfect temperature.