Hard-boiled eggs can safely remain in the refrigerator for up to seven days when stored properly at 40°F (4°C) or below, making four-day-old eggs generally safe to eat. Keeping the shells on provides the best protection against bacteria and moisture loss, while peeled eggs should be stored in airtight containers and consumed within five to seven days. Cooling eggs quickly after boiling and storing them in the main section of the refrigerator rather than the door helps preserve both freshness and safety. Factors such as the original freshness of the eggs, proper cooking, and consistent refrigeration all influence how long they remain in good condition.

Before eating stored hard-boiled eggs, it is important to check for signs of spoilage. A strong…