i guess i'm the obsessive one here
i take a mr. clean magic eraser(no soap of course) and rub off the dirty spots on mine
then a quick rinse under very hot water
dont know if thats considered washing or not LOL
Eggs are protected by the bloom and about 95% of mine are clean; I wouldn't wash the clean ones because I value the bloom.
I will take a wash cloth, slightly warmer than the temperature of the egg, and wipe a bit of dirt off if I find one that needs it. Those eggs go to my dogs.