Mauviel, a French family business established in 1830 and located in the Normandy town of Villedieu-les-Poeles, is the foremost manufacturer of professional copper cookware in the world today. Highly regarded in the professional world, with over 170-year of experience, Mauviel offers several different lines of copper cookware to professional chefs and home cooks that appreciate the benefits of their high quality products. Professional cooks can attest that copper cookware is an essential part of every cookware collection as it is 2 by more conductive than aluminum and 10 by more conductive than stainless steel. This advantage makes copper the very best material for cooking, as it is unsurpassed in its ability to heat up evenly and rapidly and to cool down quickly, allowing for maximum control and great cooking results. M'Heritage combines two efficient materials that are perfect for cooking and table presentation a 1.2-2 mm exterior of copper and a very thin stainless interior. The copper exterior makes up 90-percent of the sandwiched material and provides for excellent conductivity. The stainless steel lining is easy to clean and very durable. M'Heritage has straight sides and stay cool stainless steel handles that are attached to the bodies with sturdy stainless steel rivets. M'Heritage is resistant to high temperatures and scouring pads on the interior and comes with a limited lifetime warranty. Made in France, for household use only.