Eggs are nutritious and versatile, but confusion often surrounds their expiration. Labels like “sell-by” or “use-by” help guide purchases, yet eggs don’t necessarily spoil once those dates pass. Instead, freshness tests are more reliable. A simple float test works: fresh eggs sink, older ones float. Cracking them open also helps—discard any with an unusual color or odor.
Eggs lose freshness because their porous shells allow moisture and gases to escape, though refrigeration slows this process. Properly stored, they can remain safe weeks beyond the printed date. Still, spoiled eggs carry risks like salmonella. To stay safe, refrigerate in their original carton, avoid fridge doors, and maintain consistent temperatures. Experts advise trusting sensory checks over strict labels.