Emile Henry Flame Top 4.2-Quart Round Oven, Black Made of Burgundy clay, can be used directly on a gas flame, an electric or halogen hob without a diffuser and without any fear of cracking or breaking Oven, broiler, microwave safe, it can go directly from a freezer or a refrigerator to a hot oven to the table, where it will retain the cooking heat for a very long time Raised dots on the underneath side of each lid evenly distribute evaporated juices directly back into the cooking food produces a more thoroughly cooked, tender and moist dish 30 percent lighter than many types of comparable metal cookware products, Flame-Top is dishwasher-safe and cleans up very easily Can be left on an open flame, at high temperatures without any ingredients in the pot and the pot will not crack or break