Welcome to the The Incredible Edible Egg™ Eggcyclopedia, where you can access the latest egg information from A-Z. The Eggcyclopedia was developed by the American Egg Board (AEB) on behalf of America's egg farmers who are committed to caring for their hens and producing high-quality eggs for you and your families.

Just click on any letter below to bring up a list of egg terms and their related definitions.


Washing eggs to remove any dirt or stains. In modern laying houses, eggs are gathered shortly after they’re laid and moved to automated washing equipment. Strict federal regulations specify the procedures and cleaning compounds that may be used. Today most eggs are cleaned in mechanical egg washers employing sprayers, brushes, detergent-sanitizers, rinsers and driers. Only clean eggs go to the market. In washing, the bloom is removed. About 10% of egg packers apply an edible mineral oil to replace it. – See Bloom, Oiling, Production