I really don't know how to keep my eggs clean!! I keep their nesting boxes clean, but some of my girl's eggs are just nasty with poop!! Others are pristine!! Could this be because of different breeds? It's funny because they are sometimes in the same box!! are some chickens just dirty layers, and others not? I have a wide variety of breeds (8, I think) total of 31 layers, all housed together. Unless they are my EE's, I really don't know who's eggs are whose!