Egg grading is the process of evaluating eggs based on their quality and size. This assessment helps consumers choose the best eggs for their needs. Grading is typically done by examining the egg's shell, air cell size, and the appearance of the egg white and yolk. In the United States, eggs are graded into categories such as Grade AA, Grade A, and Grade B. Grade AA eggs have firm whites and high, round yolks, while Grade B eggs may have thinner whites and flatter yolks. This grading system ensures that consumers receive eggs that meet specific quality standards.