How Long Fresh Unwashed Eggs Last in Your Refrigerator
Unwashed eggs stay fresh for three to four weeks in the refrigerator, and sometimes longer
An unwashed egg with its natural protective coating—called the bloom—lasts significantly longer than a washed one. The bloom is a thin, invisible layer that seals the porous shell and keeps bacteria out. When you refrigerate unwashed eggs, that coating stays intact, which is why they hold their quality for three to four weeks from the day you bring them home. Some eggs remain safe to eat for five to six weeks, though the yolk and white begin to thin after the four-week mark.
The key difference between unwashed and washed eggs matters because most commercial eggs sold in U.S. grocery stores are already washed, which removes the bloom and shortens their shelf life to about three weeks. If you buy eggs directly from a farmer or keep backyard chickens, you're working with unwashed eggs—and you have more time before they decline.
Temperature is the other critical factor. Eggs stored at a consistent 35°F to 40°F (the typical refrigerator range) last much longer than eggs left on the counter. Room-temperature eggs deteriorate noticeably within one to two weeks, so refrigeration is worth the space.
Key Takeaways
- Unwashed eggs with their natural bloom last three to four weeks in the refrigerator, compared to three weeks for washed eggs.
- The bloom is a protective coating on the shell that seals out bacteria; washing removes it and shortens storage life.
- Store eggs in their original carton on a shelf (not the door) where temperature stays steady between 35°F and 40°F.
- Eggs remain safe to eat beyond four weeks but develop thinner whites and flatter yolks, which affects cooking results.
- A simple float test in water tells you whether an older egg is still good: fresh eggs sink, stale eggs float.
Why the bloom matters more than you might think
The bloom is not a coating you add—it's a natural waxy layer that the hen's body produces as the egg passes through the oviduct. Under a microscope, the shell is porous, with thousands of tiny holes. Without the bloom, moisture and bacteria move through those holes freely. With the bloom intact, the shell becomes a sealed container.
When a commercial operation washes eggs (which is standard in the U.S. for food safety reasons), they remove dirt and potential bacteria from the outside, but they also strip away the bloom. This is why washed eggs must be refrigerated immediately and have a shorter shelf life. Unwashed eggs from a farmer's market or backyard flock still have their bloom, so they can sit on a cool shelf for weeks without refrigeration—though refrigeration extends their life even further.
If you wash your own eggs at home, you've removed the bloom, so treat them like commercial eggs: refrigerate them right away and plan to use them within three weeks.
The right way to store eggs in your refrigerator
Keep eggs in their original carton, not in the door compartment. The carton protects the shells from cracks and keeps the eggs from absorbing odors from other foods. The door is the warmest part of your refrigerator because it opens and closes constantly, causing temperature swings. A shelf in the main body of the fridge stays closer to a steady 35°F to 40°F, which slows the aging process.
Store eggs with the pointed end down, if your carton allows it. This keeps the air pocket (which forms at the wider end) away from the yolk, reducing the chance that bacteria will reach it as the egg ages. Most commercial cartons are designed this way already.
Keep eggs away from strong-smelling foods like onions, garlic, or fish. Eggshells are porous, and while the bloom offers some protection, old or damaged eggs can absorb odors over time. A sealed container or the original carton prevents this.
How to tell if an older egg is still good
The float test is the most reliable way to check an egg you're unsure about. Fill a bowl with cold water and gently place the egg in it. A fresh egg sinks and lies flat on the bottom. An egg that is a few weeks old stands upright on the bottom. An egg that floats to the surface has gone bad and should be discarded.
This works because as an egg ages, moisture inside evaporates through the porous shell, and the air pocket grows larger. The bigger the air pocket, the more buoyant the egg becomes. A floating egg means the air pocket has expanded enough to lift it—a sign that the contents have deteriorated significantly.
You can also crack an egg into a bowl and look at it. A fresh egg has a thick, clear white and a yolk that sits high and round. An older egg has a thin, watery white and a yolk that spreads out and flattens. Neither is unsafe to eat, but the texture and cooking behavior change. Thin whites won't hold together well in a poached egg, for example, but they're fine for scrambled eggs or baking.
What happens to eggs as they age
An egg doesn't spoil suddenly at the four-week mark. Instead, it changes gradually. The white thins as moisture evaporates, and the yolk membrane weakens, allowing the yolk to flatten. The pH inside the egg rises, which affects how it cooks and tastes. These changes don't make the egg unsafe—they just change how it behaves in the pan or bowl.
Older eggs are actually easier to peel when hard-boiled because the white pulls away from the shell more readily. They're also better for baking, where the thinner white doesn't matter. Fresh eggs are best for frying or poaching, where you want the white to hold its shape and the yolk to stay intact.
An egg only becomes unsafe when bacteria have grown inside it to dangerous levels. This happens much more slowly in a refrigerated egg than a room-temperature one, which is why cold storage extends shelf life so dramatically. A refrigerated egg can remain safe for several weeks past the four-week mark, though quality declines.
Unwashed versus washed eggs: storage differences
If you buy eggs from a farmer's market or raise your own, you likely have unwashed eggs. These can sit on a cool shelf (around 55°F to 65°F) for two to three weeks without refrigeration. In the refrigerator, they last three to four weeks or longer. The bloom does the work of preservation.
Commercial grocery-store eggs are washed, so the bloom is gone. They must be refrigerated from the moment they leave the processing facility, and they last about three weeks in your fridge. Some sources cite up to five weeks, but quality drops noticeably after three.
The difference matters if you're buying in bulk or planning meals weeks ahead. Unwashed eggs give you more flexibility and longer storage time. If you wash eggs at home for any reason, refrigerate them immediately and treat them as washed eggs—use them within three weeks.
Storage timeline and what to expect
| Time in Refrigerator | Egg Condition | Best Use |
|---|---|---|
| 1 to 2 weeks | Fresh, thick white, high yolk | Frying, poaching, any preparation |
| 2 to 4 weeks | White thins slightly, yolk still holds shape | Scrambling, baking, hard-boiling |
| 4 to 6 weeks | Thin white, flat yolk, air pocket visible | Baking, scrambling, hard-boiling only |
| Beyond 6 weeks | Quality declines; float test recommended | Discard if float test shows floating |
Frequently Asked Questions
Can I refrigerate eggs after they've been on the counter?
Yes. If eggs have been at room temperature for less than two hours, refrigerate them and they'll last about as long as eggs that were refrigerated from the start. If they've been out longer than two hours, use them within one to two weeks rather than the full three to four weeks. Cold storage slows aging but doesn't reverse it.
Do I need to wash my eggs before storing them?
No. If your eggs are visibly dirty, you can rinse them under cool running water just before cooking, but don't wash them for storage. Washing removes the bloom and shortens shelf life. If you must wash them before storing, refrigerate immediately and use within three weeks.
What does it mean if an egg has a blood spot inside?
A blood spot is a small amount of blood from the hen's reproductive system and is harmless. It doesn't mean the egg is old or unsafe. You can eat it or remove it with the tip of a knife. It has no effect on storage life.
Can I freeze eggs to make them last longer?
Yes. Crack eggs into a bowl, beat them lightly, pour into an ice cube tray or freezer container, and freeze. Frozen eggs last three to four months. Thaw them in the refrigerator before cooking. Don't freeze eggs in the shell—they'll crack as the contents expand.
Why do some eggs have brown shells and others white?
Shell color depends on the breed of hen and has no effect on freshness, nutrition, or storage life. Both brown and white eggs last the same amount of time in the refrigerator. The bloom protects both equally.