I sell my chicken eggs. I am now getting a surplus of duck eggs and would like to begin selling them. My chicken eggs are clean I change their nests out once or twice a week maybe once in a blue moon i get a dirty egg. My duck eggs are.... sometimes clean but mostly not so much. I clean their boxes 2-3 times a week get out as early as possible to gather them and use a nylon stripper brush to get all the bigger stuff off. I washed some for my own use and there was a distinct smell when I was washing. Never notice that with the hens eggs. How do you all prepare your duck eggs for market? Can I use a damp towel? Can I use a bit of 10% beach solution? Do you wash yours at all? I read ina book that duck eggs only last about 10 days if you wash them? I am at a loss. I stopped washing my hens eggs and just told people to rinse under warm water before use.