How long can fresh eggs in the shell be stored in a refrigerator at 40 degrees?

Fresh eggs in the shell can be stored in a refrigerator at 40 degrees Fahrenheit for approximately 3 to 5 weeks while maintaining their quality. The U.S. Department of Agriculture (USDA) recommends that eggs be used within this time frame for optimal freshness and safety. The integrity of the eggshell provides a barrier that helps protect the egg from bacteria, and refrigeration slows down the growth of any bacteria that might be present.

This storage guideline is based on the understanding that as eggs age, their air cell enlarges due to moisture and air seeping through the porous shell, which can affect their quality. While the eggs may still be safe to eat after 3 weeks, their texture and flavor may not be as desirable. Therefore, when planning to use fresh eggs, it's best to consume them within this 3 to 5-week window for the best culinary results.