Armetale is a food-safe alloy that is heat and cold resistant up to 1000 degrees Fahrenheit These pieces can retain hot and cold temperatures for up to two hour Will not rust， break or tarnish; will not break， crack or chip Hand wash with warm water and a mild detergent Our fine products are developed by skilled artisans and crafted into elegant and practical designs for gift-giving， entertaining， and everyday use. Each piece is hand polished to capture the beauty and intricate detail of the design. Made of a food-safe alloy， Armetale serveware is ideal for cooking and serving food.