I left my egg whites out to age, and then forgot about them. It has now been over 48 hours. I'm not going to use them just in case, but was wondering how long you can safely age them?

I don't know the PC answer to this question, but I have to tell you that here in Mexico - even in hot, humid Cancún - grocery stores don't refrigerate eggs and neither do most people when they get them home. I've never heard of anybody getting food poisoning from eggs this way. Of course, once they HAVE been refrigerated, I'm not sure what the rules of the game are. Don't take this as advice, though. It's just anecdotic information (the kind scientists hate!).

Thank You! You aren't the first person who has told me this today. Neat to know. Also, I have been reading about how egg whites contain something that makes them resistant to bacteria growth. I guess if they can sit out for 48 hours, what's the difference in sitting out for 72 hours? LOL