10 Food Facts That Will Make You Question Everything You Believe In

Eggs have a natural coating called a "bloom" that keeps out air and bacteria, and if you have your own farm-fresh eggs from your backyard, it's totally OK not to refrigerate them for several days. However, eggs that you buy in the grocery store have been washed and their coating has been removed, per USDA guidelines, so they're more susceptible to bacteria and need to be refrigerated.