other materials may also be unsuitable for the dishwasher depending on how they were made. Aluminum Uncoated aluminum may discolor or react with strong dishwasher detergents.
Sensitive Plastics Some plastics can warp under high heat. Only place them in the dishwasher if they are clearly labeled dishwasher safe. Hand-Painted Mugs Decorative designs can gradually fade, especially if they are applied over the glaze.
Electrical Components Motorized parts, electrical attachments, and items with wiring should never go in the dishwasher unless the manufacturer specifically states that a removable component is dishwasher
