The Cuticle on an Egg

The cuticle on an egg is a protein rich go thet na in robes the egg, and it is evolved to block biological contamination of the embryo inside. We generally eat non fertilized eggs, obviously, buta the egg comes out with a cuticle either way. The egg shell has to be porous to allow for respiration. These pores, unfortunately, are like wide open doors for potentially harmful micro organisms that are attracted to the warm, wet, nutrient rich environment inside the egg.