We have 17 hens and get about 13-15 eggs a day on most days. My hubby sells most of them to people that he works with in the city. He washes them. I guess that they would be grossed out by a spot of poop or two. Mostly our eggs stay clean, but on ocassion we will have a hen that sleeps in the nest box and leaves poop in there and OF COURSE someone has to use that box to lay their egg in. (we have 6 nest boxes) So that egg/eggs in that box get some poop on them. He washes them off with hot soapy water and a cloth. Before we started to get so many eggs, we use to just carton them up and clean them as we used them if they were dirty. Oh, my sister and her kids (in their 20s) freak out if they get a dirty one, so we wash hers too.