Are All Eggs You Buy in U.S. Stores Pasteurized?

No, not all eggs sold in U.S. stores are pasteurized. Most eggs available in grocery stores are raw and not pasteurized. Pasteurized eggs are specifically treated to kill bacteria such as Salmonella and are typically labeled with a clear indication of their pasteurization process. If you’re looking for pasteurized eggs, check the packaging for labels that indicate they have been pasteurized.

Understanding Egg Safety

An egg is designed biologically to be a safe environment for the development of new life, provided it is not tampered with. Unless the shell is damaged, the egg should be safe. However, commercially produced liquid egg whites or other products processed at high temperatures must be pasteurized.

Historical Context

The preference for pasteurized eggs has changed over time. In the past, when the author was a boy, raw eggs were still consumed occasionally, for instance, as a treat on Sunday mornings. However, current guidelines in the U.K. recommend that eggs be thoroughly cooked, particularly with a soft yolk. This preference for cooked eggs over raw is a significant shift from the past.

Pasteurization Process in Different Regions

In the United States, American eggs are typically washed to make them look cleaner, which removes a protective membrane from the outside of the shell. This makes it necessary to refrigerate the eggs for storage. In contrast, European eggs are not washed and can be stored without refrigeration for long periods. Selling refrigerated eggs in Europe is even illegal. While it's possible to pasteurize eggs at home using a sous vide device, they would still need refrigeration due to the membrane removal process during washing.

Why Not All Stores Sell Pasteurized Eggs

It's important to note that in the U.S., the availability of pasteurized eggs can vary. While most stores do sell pasteurized eggs, there might be some stores that do not. This is because the distribution and labeling of pasteurized eggs are not uniformly enforced nationwide. Consumers should always check the packaging for specific labels indicating pasteurization when purchasing eggs.

Conclusion

Understanding whether the eggs you purchase are pasteurized is crucial for ensuring food safety. While most commercial egg products are required to be pasteurized in many countries, it's essential to be aware of local regulations and store practices. Whether pasteurized or not, it's always a good practice to handle eggs carefully and cook them thoroughly to avoid any potential foodborne illness.