Shopping for a dishwasher?

Many dishwasher manufacturers now make–or are introducing–models that have durable stainless-steel tubs. These can’t compete in price with models utilizing plastic tubs, but they are quieter, easier to maintain and more efficient during drying cycles because the metal reflects heat better. They can employ a lower-wattage heating element for drying, which saves energy and helps protect heat-sensitive items on the lower rack. By combining a stainless-steel interior with good insulation, for example, KitchenAid dishwashers can use a 450-watt element instead of the more normal 600 to 750-watt type. Stainless tubs also allow higher water temperatures than the typical 140 degrees Fahrenheit suitable for plastic. Some, such as Amana’s, operate in excess of 165 degrees F., hot enough to sanitize dishes.