Calphalon makes a variety of types of cookware; some are dishwasher-safe while some require hand-washing. Always clean all lines of Calphalon cookware with non-abrasive cleaning supplies.
When getting ready to clean your Calphalon cookware, make certain the pots and pans are cool. Placing a hot pan into cold water destroys the pot by warping it.
Certain lines of Calphalon items, like the Calphalon Unison Nonstick line, are dishwasher-safe. Calphalon recommends using Cascade dish detergent for cleaning. Do not use any cleaners with bleach or citrus additives, as they can harm the pots. If washing by hand, do not use an abrasive cleaner or hard-bristled brush, as they could damage the nonstick interior.
Calphalon Tri-Ply Copper pots and pans are non-dishwasher safe, as are Calphalon Commercial Hard-Anodized pots and pans. Using a dishwasher to clean these pots voids the warranty. Instead, clean the interior of the pots with a liquid cleaner like Dawn along with a non-abrasive sponge or soft brush. For cleaning a copper exterior, use a copper cleaner like Bar Keeper's Friend and then finish by hand-washing.
Never use any sort of bleach, abrasive cleaning pads, baking soda or floor cleaners on any Calphalon cookware, as doing so voids the warranty.