Care Only use low to moderate heat settings, unless boiling because overheating can cause brown or blue stains. Use 1 to 2 teaspoons of oil or butter with these products, but never aerosol because they can damage non-stick coating. Do not use in broiler or oven above 500 degrees. Dishwasher safe, but hand wash recommended after each use. Do not use chlorine bleach based cleansers, or any steel based cleansing pads. About All-Clad For more than 40 years, All-Clad has manufactured top of the line cookware products revered by both working chefs and avid home cooks. All-Clad pieces feature an innovative blend of aluminum, copper and steel and are made in the USA. This Pennsylvania based company regards the quality of its products with the utmost importance, going through rigorous hand inspection at every stage in the process of manufacturing. All-Clad also values environmentally friendly production, recycling materials whenever possible--they even re-use the metal dust created during sanding.