Once eggs have been refrigerated, they must be kept refrigerated to prevent condensation from forming on the shell if they warm up. This moisture makes it easier for bacteria to penetrate the shell. Thus, any commercially produced eggs in the United States should be kept in your fridge.

What happens if you don't refrigerate eggs?

The Food and Drug Administration has estimated there are about 142,000 cases of salmonella poisoning from eggs each year in the U.S. And salmonella can spread quickly when eggs are left out at room temperature and not refrigerated. ... Refrigerated eggs should not be left out for more than 2 hours, according to officials.

Why do Americans refrigerate eggs?

It turns out that, here in America, eggs are refrigerated because the USDA requires eggs sold for consumption to be washed, processed, and then refrigerated before they come anywhere near a store's shelves. ... Second, it can grow on the outside of the shell after an egg is laid if it comes in contact with a hen's feces.