From HomePuff: a 300ml, 480ml & 580ml Insulated food jar for hot soups, stews, curries, rice, etc. (or cold items like yoghurt, cold soup, salads, etc.). Dishwasher-safe. It has excellent heat retention: better than all Stainless steel Food jars & better than all-plastic thermal food jars because of its metal. We also have a larger version of the 1700ml Insulated Lunch box.