Milton Exotique Insulated Hot-pot Food Server Casserole with Stainless Steel Insert Keeps Food Warm/cold for Hours - 1.5 Lt These casseroles are odorless, hygienic, durable and virtually unbreakable These double walled casseroles are Insulated with TUF-PUF, the world's best insulating material which guarantees a high thermal rating ensures temperature maintenance for hours