My hens are getting ready to start laying eggs and I want to know how I should label the cartons. My chickens are cage free and fed organic food/scratch and some table scraps. I don't want to wash the eggs so they'll last longer without refrigeration. Do the eggs NEED to be washed before use? I'll wipe off any crud that may be on them but do they actually need to be rinsed/washed before use? If I have to wash them, what do I need to coat them with before sale?