Did you ever wonder why Europeans and other cultures don’t refrigerate their eggs?
Long story short, if you wash your eggs after you collect them, they must be refrigerated. If you don’t wash the eggs, they can be kept at room temperature.
An egg shell is naturally porous to allow an exchange of gases during incubation. When a hen lays an egg, her body secretes a protective coating that prevents bacteria from entering through the pores of the shell and water and oxygen from leaving the egg. This coating is called the cuticle, or bloom. When you wash an egg, you remove the protective coating, you are opening the egg up to bacterial contamination, which can be prevented by refrigeration. Once you wash and refrigerate the egg, however, it must stay refrigerated to prevent contamination. In addition to protecting eggs from bacteria, refrigeration also prolongs shelf life.
If you want to keep your eggs at room temperature, collect them and simply brush off dried fecal matter or gently sand any that is stuck to the shell. If you choose to display them at room temperature in an pretty basket or spiral egg holder, such as this one. When you are ready to use an egg, wash it an proceed with cooking.