Dishwasher safe. However, we recommend hand washing to preserve the luster of the stainless steel. Hand wash using a liquid dishwashing detergent such as Dawn® and a non-abrasive sponge or soft bristle brush. Use Cascade® for automatic dishwashers. To restore the shine to the stainless steel, you may also use Bar Keeper’s Friend® cleanser (or other polish made especially for stainless steel) and a non-abrasive sponge or soft-bristle brush. Product Manual Link
"Enjoy lasting durability and peace of mind with the Calphalon Full Lifetime Warranty"