I have a customer that buys eggs from me weekly, today she told me that 1 of her eggs was covered in mold when she took it from the fridge to cook it. Any one know of a reason why this happened or what could have caused this? I always wash my eggs with warm water, allow to dry over night in a 78 degrees ac room and place in egg cartons and into the fridge in the morning. I have been doing it like this for over a year with no problems or complaints before just great compliments on great taste! Any info greatly appreciated!