How Long Do Eggs Last?

Eggs may be refrigerated three to five weeks from the day they are placed in the refrigerator. The "Sell-By" date will usually expire during that length of time, but the eggs will be perfectly safe to use. Always purchase eggs before the "Sell-By" or EXP (expiration) date on the carton.

How do you know when eggs are bad?

Simply fill a bowl with cold tap water and place your eggs in it. If they sink to the bottom and lay flat on one side, they are fresh and good to eat. A bad egg will float because of the large air cell that forms at its base. Any floating eggs should be thrown out.

Do eggs really expire?

Egg cartons often have a date printed on them, such as a “best before” or “sell by” date. ... But if you store them properly, eggs can actually last far beyond their expiration date and still be safe to eat. So the short answer is yes, it can be safe to eat expired eggs.

James H. Sterling

James H. Sterling

Environmental Science & Climate Journalist

James Sterling reports on renewable energy developments, climate policy, ecological conservation, and green tech innovations around the globe.