ok, so i have an accumulation of duck eggs piling up in the coop. been eating some but cant manage to keep up cause i dont eat eggs often! my questions are: -how do you properly clean eggs (organically if possible?ehh i guess i mean without chemicals ) i just dont want to start selling eggs with poop on them and stuff, i generally just wash them off but dont want to be eating eggs or selling them if they have chemicals on them. -How easy is it to sell duck eggs? should i post an ad in the newspaper? craigslist? -and how old is too old to eat? i know if an eggs bad it will float in water. but should eggs be eaten a week after being laid? 2 weeks? im wondering because ive had such an accumulation and dont know when some were laid. so when is an egg considered "best by date" how long? i will probably just pitch some in the mulch and feed them some, or the shells. but yes if you could help me it would be much appreciated!