Many people rinse eggs before cracking them, believing that washing the shells removes dirt and harmful bacteria. It may seem like a sensible kitchen habit, but when it comes to commercially packaged eggs in the United States, washing them at home is generally unnecessary and may create additional food-safety concerns.

So, should you wash eggs before cooking? The answer depends partly on where your eggs come from and how they have been handled. Understanding the difference can help you make safer choices in the kitchen.

Should You Wash Store-Bought Eggs Before Cooking?

According to the U.S. Department of Agriculture (USDA), consumers do not need to wash commercially packaged eggs before using them.

In the United States, commercially processed eggs are washed and sanitized under controlled conditions before they reach grocery stores. This process is designed to remove contamination from the shell while following specific food-safety requirements.

Washing these eggs again at home does not provide an additional safety benefit. In fact, it can introduce moisture and increase the possibility of spreading bacteria around the kitchen.

For this reason, the USDA advises against washing commercially packaged eggs before use.

Why Washing Eggs at Home Can Be a Problem

An eggshell may look solid, but it contains tiny pores. The shell also has a natural protective outer layer, often called the cuticle or bloom, which helps limit the movement of bacteria through the shell.

When an egg is washed improperly, moisture can create conditions that make contamination more likely. Water that is colder than the egg may also encourage contaminated liquid to move through the shell’s pores.

Another concern is cross-contamination. Water splashing from an egg onto the sink, countertop, nearby dishes, or other foods can spread bacteria throughout the preparation area.

This is why food-safety guidance focuses not only on the egg itself but also on clean hands, utensils, and kitchen surfaces.

What If an Egg Looks Dirty?

If you notice dirt on a commercially packaged egg, do not automatically rinse it under the tap. It is generally better to avoid using eggs with heavily soiled or damaged shells and to follow the supplier’s food-safety instructions.

Eggs from backyard chickens or local farms may be handled differently from commercially processed eggs. Some countries also have different egg-washing and refrigeration practices.

If you buy unwashed eggs directly from a farm, ask the producer how they should be cleaned and stored. Follow local food-safety recommendations rather than assuming that guidance for American supermarket eggs applies everywhere.

How to Handle Eggs Safely Before Cooking

Instead of washing the shells, follow these practical food-safety habits:

• Check the shells: Choose eggs that are clean and free from cracks. Avoid eggs with leaking or damaged shells.
• Store them properly: In the United States, keep commercially packaged eggs refrigerated at 40°F (4°C) or below.
• Keep the carton: Store eggs in their original carton to help protect them and maintain their quality.
• Wash your hands: Use soap and water before and after handling raw eggs.
• Clean kitchen surfaces: Wash bowls, utensils, countertops, and other equipment that come into contact with raw eggs.
• Cook them thoroughly: Cook eggs until the whites and yolks are firm. Egg dishes such as casseroles should reach a safe internal temperature of 160°F (71°C).

These steps help reduce the risk of foodborne illness, including illness caused by Salmonella.

Does Cooking Make Eggs Safe?

Proper cooking is one of the most important ways to reduce the risk of harmful bacteria in eggs. However, safe preparation begins before the eggs reach the pan.

Keep eggs refrigerated when required, avoid using cracked or leaking eggs, and prevent raw egg contents from coming into contact with ready-to-eat foods.

If a recipe calls for raw or lightly cooked eggs, such as certain homemade sauces or desserts, choose pasteurized eggs or pasteurized egg products.

The Bottom Line: Washing Eggs Is Usually Unnecessary

For commercially packaged eggs sold in the United States, washing them before cooking is not recommended. They have already been cleaned under controlled conditions, and rinsing them again can create unnecessary food-safety concerns.

The better approach is simple: store eggs correctly, wash your hands and kitchen equipment, avoid damaged shells, and cook eggs thoroughly.

A quick rinse may make an egg look cleaner, but it does not replace proper food handling. When it comes to egg safety, good storage and careful preparation matter much more.

Food Safety Note: Egg-handling recommendations can vary by country because commercial washing and refrigeration practices are not identical everywhere. Follow the food-safety instructions provided by your local authorities and egg supplier.