It is generally not recommended to leave fresh eggs on the countertop without refrigeration for an extended period. In most countries, including the United States, eggs are typically washed and refrigerated to reduce the risk of bacterial contamination, such as Salmonella.
When eggs are laid, they have a natural protective coating called the "bloom" or "cuticle" that helps seal the shell pores and protects the egg from bacteria. However, this natural protective layer is removed during the washing process, making the eggs more susceptible to contamination.
To ensure food safety, it is best to refrigerate eggs promptly after purchasing or collecting them from a farm. When refrigerated at temperatures below 40°F (4°C), eggs can remain safe to eat for several weeks beyond their packing date. The specific shelf life of eggs can vary depending on factors like the egg's freshness at the time of purchase and storage conditions.
If you accidentally leave eggs out on the countertop for a short period, they should be safe to consume as long as the room temperature is not too warm. However, it's always better to err on the side of caution and return the eggs to refrigeration as soon as possible.
If you have eggs from backyard chickens, they may still have their natural protective bloom intact. In such cases, some people argue that the eggs can be safely stored at room temperature for a short time, especially if the room is cool. However, it's essential to understand that this practice goes against standard food safety guidelines, and there is still a risk of bacterial contamination.
To ensure the longest shelf life and maintain food safety, always store fresh eggs in the refrigerator. If you're ever unsure about the safety of eggs, it's best to discard them rather than risk potential foodborne illness.