In my new house, I now have my first dishwasher. I know something's can be ruined in the dishwasher, so I have been reluctant to put my tri ply SS cookware in there. About the only think I have put in the dishwasher is my dishes (stoneware) and anything glass, and my SS eating utensils. I know not to put aluminum in there, and I don't put plastic in there either. But I am thinking the SS cookware should be ok. What about copper?