It is recommended that eggs should not be left unrefrigerated for more than 2 hours. After this time, the risk of bacteria growth increases, which can compromise the safety and freshness of the eggs.
During the grading process, eggs are washed, which removes dirt, bacteria, and the protective bloom the egg is laid with. Once this bloom is removed, the eggshell becomes more porous and susceptible to bacteria. Keeping eggs refrigerated helps limit this bacteria growth and keeps them fresher for longer.
For optimal freshness and safety, always store your eggs in the refrigerator and avoid leaving them out for extended periods.