I don't wash the eggs that i sell. I feel pretty confident that would shorten their shelf life, and i want my eggs to stay as fresh as possible for as long as possible for my customers. But lately, i've been having more problems than usual with marks of authenticity on my eggs. In the past, i would just put those in my "for the house only" carton and wash them right before i use them. But it has become a lot more than i need for us to eat. The other day, i discovered my husband's sanding sponge and found it works great for cleaning up the eggs without having to get them wet. But am i still compromising the bloom and shortening the shelf life? I would love to read your opinions, educated or otherwise.