Solid Copper beating bowls have long been valued by professional chefs and bakers for their special properties: A chemical reaction with the copper allows you to beat up to a third more volume into egg whites, resulting in lighter cakes and fluffier chiffon. This 5 Qt bowl makes a great gift for any chef baker. Protective coating (applied to prevent tarnishing) must be removed prior to food use. Type: Bowl, 5 Quart Material: Solid Copper Dimensions: 12 inches L x 12 inches W x 5 inches H Care Instructions:Hand wash, wipe dry