I do not wash unless they are nasty (poo on them) Then I wash as little as possible. The egg is wet when the hen lays it. That coating is the bloom. It kind of seals the egg shell so it is harder for bacteria to enter the egg. If you wash the egg you wash off the bloom making it easier for bacteria to enter the egg. If I wash an egg I try to use it quickly. I refigerate mine but some people dont.