Why You Should Never Wash Eggs Before Storing or Using Them

Eggs are a staple in every kitchen, forming the base of many recipes, from doughs to both sweet and savory dishes. Given their ubiquitous presence, many people wash eggs before using or storing them, believing it to be a good hygienic practice. But is this habit beneficial, or could it be ruining your eggs?

Do Farm Fresh Eggs Need to Be Washed?

Farm fresh eggs, straight from the hen, come with a natural coating called the "bloom" or cuticle. This invisible layer serves as a protective barrier, preventing bacteria and other contaminants from entering the porous shell. Washing these eggs can remove this protective layer, making them more susceptible to contamination. Therefore, farm fresh eggs do not need to be washed if they are properly handled and stored.

Is It Okay to Wash Eggs with Water, In General?

Washing eggs with water might seem like a logical way to clean them, but it can actually do more harm than good. When eggs are washed, especially with cold water, the temperature difference can cause the egg contents to contract, drawing in bacteria from the shell’s surface. Even using warm water isn't much safer, as it can still damage the natural protective coating. Thus, it’s best to avoid washing eggs with water to maintain their safety and integrity.

Why Do Eggs Go Bad After Washing?

Eggs can go bad more quickly after washing because the removal of the protective cuticle exposes the egg to potential bacterial contamination. This coating, which is applied naturally by the hen, helps keep the egg fresh by sealing the shell's pores. Once washed away, the egg becomes more vulnerable to bacteria entering through these pores, which can accelerate spoilage. Additionally, moisture left on the shell after washing can create an environment conducive to bacterial growth.

How to Clean Unwashed Eggs

If you need to clean unwashed eggs, it’s best to do so just before you use them. Instead of washing them, gently wipe them with a dry, abrasive cloth or a soft brush to remove any dirt or debris. This method helps maintain the egg’s natural protective layer while ensuring that it is clean enough for use. If you must use water, do so sparingly and make sure to dry the eggs thoroughly immediately afterward.