Eggs have a surprisingly long shelf life—if you follow these simple rules.
Some say they are the planet’s most perfect food. Many people can’t imagine starting their day any other way. No matter how you boil them, fry them, bake them, scramble them, coddle them or poach them, eggs are one of the most nutrient-dense and affordable sources of protein available.
Another reason they are so relied upon at mealtime? They have an impressive shelf life, thanks in large part to their protective shells.
“Eggshells are semipermeable membranes made almost entirely of calcium carbonate,” says Ann Ziata, chef at the Institute of Culinary Education. “Air and moisture can actually enter through it. Luckily, there is another, stronger protective layer underneath the shell that works to keep harmful bacteria from entering.”
However, it’s important to never use eggs with cracked shells, as they aren’t safe to eat. Additionally, eggs cannot be left out on the counter.
Wondering just how long can eggs last in the fridge? Once you learn this rule, you’ll know just how much leeway you have when you buy your next carton.
The Ideal Refrigerator Temperature for Egg Storage
The USDA advises storing eggs in their grocery carton in the coldest part of your fridge. Here, they’ll last three to five weeks.
“The coldest part of your fridge, set to 40°F, is perfect,” says Ziata. “Don’t store eggs on the door; this area receives large temperature increases each time the fridge is opened.” She explains that being exposed to warmer temperatures will increase the speed at which bacteria can grow. That’s why it’s best to keep the more shelf-stable items, like condiments, on the door shelves.
How long do eggs last in the fridge?
While whole eggs in the shell last about a month refrigerated, that time varies when outside the shell. “Raw egg yolks and whites last up to four days in the fridge,” says Ziata. “Hard-cooked eggs can be stored for three to four days. A quiche will last three to four days.” She cautions everyone to always check for quality and toss anything that smells off or looks unappetizing.
This may come as a surprise, but you can actually freeze cooked eggs, too.
Egg Storage Tips
When it comes to egg storage, Ziata says that since eggs are porous they can absorb odors from strong-smelling foods like cut onions. Therefore, it’s best to keep them separate, with the eggs in their carton and odorous foods in their own airtight container.
There’s no need to wash your eggshells prior to use either, as all USDA-grade eggs are prewashed. However, “backyard laid eggs can be quite dirty, so if you are harvesting eggs, you’ll need to take them through a specific washing process to remove any potential hazards (including salmonella),” she says.
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