Fill a bowl with warm water. Cold water will cause the bacteria on the surface to be driven into the egg. Don’t use cold water. Just don’t. DON’T I SAID. Place the dirty eggs into the warm water, if only for a few seconds, the utilize your sponge or a wash rag to gently scrub the poo from the shell. This is pretty easy, unless a hen has broken an egg over the other eggs. Dried egg is like cement. But poo is pretty easy.