Mauviel Copper Egg White Beating Bowl - over 15% OFF at Cooking.com now only $99.99. Professional chefs and enthusiastic home cooks who know quality cookware is everything rely on this lovely Egg White Beating Bowl from Mauviel. This 10.25-in. copper bowl is made especially for you to beat egg whites into fluffy, cloud-like peaks for souffles or meringues. There is also brass side ring to let you hold or hang the bowl either on a rack or a kitchen hook. Please handwash with mild dish soap.