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Have a question about egg safety, handling or preparation? We've got answers.
The Egg Safety Center represents commercial egg producers, which follow the FDA Egg Safety Rule and state/federal regulatory programs.
The shell and shell membrane of an egg can prevent bacteria from entering the egg. The layers of white also discourage bacteria growth and movement toward the yolk, which contains the nutrients bacteria need. The last layer of white is composed of thick ropey strands, called chalazae, which holds the yolk centered in the egg where all the layers give it maximum protection from bacteria.