While some cookware is advertised as dishwasher safe, it’s best to wash all cookware, including sauté pans, by hand. The high temperatures, strong cleaners, and humidity inside the dishwasher wear away at nonstick coatings on aluminum cookware, rust cast iron, and discolor copper. It is generally safe to clean stainless steel sauté pans in the dishwasher, however, but you should take care that the pan won’t scrape or bang against other dishes during the cleaning cycle.;