Kuhn Rikon Duromatic Hotel Pressure Braiser 5-Quart 5-quart pressure braiser made of 18/10 stainless steel that won't interact with food Solid thermal aluminum sandwich in bottom for even browning and rapid heat absorption Five over-pressure safety systems, UL listed; automatic locking system; new generation spring-loaded precision valve Dishwasher safe; wash gasket and lid by hand 10-year warrantee on non-replaceable parts, material, and workmanship