Heritage Steel Cookware uses Titanium-strengthened 316Ti cooking surface that is 20 times more resistant to corrosion than type 304 steel, creating the most non-reactive and durable cooking surface available. 5 layers of metal allows this cookware to be induction capable without sacrificing the durability of its exterior. With over 40 years experience crafting specialty multiclad stainless steel cookware in the USA, Heritage Steel is made with only the highest quality materials and superior craftsmanship. Made in USA. Dishwasher Safe but not recommended.