There are some things that should never go into a dishwasher like wooden pieces, cast iron, and copper; so be a bit cautious and follow manufacturer care tips on specific items. The top rack is always the safest spot for loading because it is farther away from the heating element when drying. And, if you decide to wash those flip flops and rubber boots, you might want to give the dishwasher a good cleaning before the next dinner dishes load!