I'm new to collecting and washing eggs, and I'm afraid I'm doing it wrong. These are duck eggs which can sometimes be a little on the dirty side. Here's my method: We live on a clear mountain creek, and for caked-on mess, I sometimes use a handful of clean, fine-grained creek sand to scour them. I add warm water to the sand so it isn't cold when it contacts the eggs, and I use a new handful for each egg. Next I wash them with mild soap, then give a short soak in a diluted bleach solution. Finally I rinse and dry. They come out pristine-clean, germ-free, and beautiful. But I read somewhere about removing some kind of "bloom" that shortens their shelf life. I could use some advice here. Thanks!