Be the first to Write a Review Crafted in France since 1830, Mauviel’s culinary legacy spans more than 175 years, making their trademark cookware a favorite in leading restaurants and home kitchens worldwide. Mauviel cookware is made of copper, a material prized for its unsurpassed ability to transfer heat quickly, distribute it evenly and cool rapidly. Use this boiler for melting chocolate or making hollandaise sauce. The tin-lined copper pan quickly brings water to a gentle simmer beneath the heavy porcelain insert, which maintains its contents at a steady low temperature.