Emile Henry Made In France HR Modern Classics Butter Pot, Blue MADE IN FRANCE SINCE 1850. Made of all Natural Materials. High-fired Burgundy clay using Emile Henry's HR technology (high resistance) DURABLE.SCRATCH RESISANT. Extremely hard glaze; ceramic kitchenware does not scratch, does not craze and is durable for everyday use. BEAUTIFUL COLOR. Emile Henry ceramic tableware brings style and color to your kitchen. Pieces can be used in the oven, in the refrigerator or left on a countertop. EASY TO CLEAN. Dishwasher Safe or hand wash with soap and water. 10 YEAR GUARANTEE. 10 YEAR warranty against manufacturing defects when used in a household environment.