Our French imported SITRAM "Profiserie" with its aluminum core bottom is a professional line of cookware made from high quality stainless still. All Sitram cookware are still produced in Normandie since 1963.
The bottom of these saucepan is made of 18/10 stainless steel with an 8 mm (0.315") aluminum core. The aluminum conducts heat quickly and evenly and the sandwiched construction of the bottom, food is never in contact with the aluminum, prevents warping and/or de-lamination. Their handles are hollow and stay cool during cooking, each handle is hand-welded on four points to insure durability.
The manufacturer offers a two-year warranty against handles coming loose or the de-lamination of its bottom . This series can be used with any heat source including induction.