Eggs are a common refrigerator staple, but they can become unsafe when the power goes out for several hours. During an outage, the refrigerator gradually warms up, creating conditions where bacteria can multiply.
So, how long do eggs last in a power outage?
If your refrigerator stays closed, it will generally keep food cold for about 4 hours. If refrigerated eggs have been above 40°F (4.4°C) for 4 hours or more, they should be discarded. The FDA specifically lists eggs among perishable foods that should be thrown away when they have been above 40°F for this length of time.
How Long Are Eggs Safe Without Power?
The safest way to determine whether eggs are still safe is to know their temperature and how long they have been without proper refrigeration.
A refrigerator that remains unopened can generally keep food cold for approximately 4 hours during a power outage.
Egg safety during an outage
| Power outage situation | What to do with eggs |
|---|---|
| Less than 4 hours | Generally safe if the refrigerator stayed closed |
| Around 4 hours | Check refrigerator/food temperature |
| Above 40°F for 4+ hours | Discard eggs |
| Unsure how long eggs were above 40°F | Safest option is to discard |
| Eggs moved to a cooler with ice | Keep at or below 40°F |
The exact temperature matters more than simply knowing how many hours the electricity was off.
What Temperature Should Eggs Be Kept At?
Refrigerated eggs should be kept at 40°F (4.4°C) or below.
During a power outage, an appliance thermometer can help determine whether the refrigerator is still cold enough. FDA recommends having a refrigerator thermometer because it allows you to make a much better food-safety decision after an outage.
If the refrigerator remains at or below 40°F, the eggs may remain safe even if the electricity has been unavailable for some time.
What Happens to Eggs When the Refrigerator Gets Warm?
Eggs are perishable and can support bacterial growth when they are kept at unsafe temperatures.
The problem is that you cannot reliably determine whether an egg is safe simply by looking at it or smelling it. Harmful bacteria may be present without obvious changes in appearance or odor.
For this reason, food-safety authorities recommend using temperature and time rather than smell or appearance to make the decision.
What Should You Do When the Power Goes Out?
The first thing to do is keep the refrigerator door closed.
Every time you open the refrigerator, cold air escapes and warmer air enters. Keeping the door closed helps the refrigerator maintain its temperature for as long as possible.
Follow these steps:
1. Record the Time
Write down when the power went out. This gives you a reference point for determining how long refrigerated food has been without electricity.
2. Keep the Refrigerator Closed
Do not repeatedly open the door to check the eggs. If the outage is short, keeping the refrigerator closed can help preserve a safe temperature.
3. Check the Temperature
If you have a refrigerator thermometer, check the temperature when the power returns.
If the refrigerator or eggs have remained at 40°F or below, they may still be safe.
4. Use a Cooler for Longer Outages
If the power will be out for more than four hours, move eggs and other perishable foods into an insulated cooler with plenty of ice or frozen gel packs.
USDA recommends keeping refrigerated foods at 40°F or below in the cooler.
Can You Put Eggs in a Cooler During a Power Outage?
Yes. A cooler can be an effective temporary solution if you have enough ice or frozen gel packs.
Place the eggs inside the cooler and make sure the temperature remains at or below 40°F.
Avoid opening the cooler unnecessarily because the same principle applies: opening it allows cold air to escape.
A separate cooler for perishable foods can be especially useful during long apartment power outages.
Can You Eat Eggs After a 6-Hour Power Outage?
If refrigerated eggs have been above 40°F for 4 hours or more, they should be discarded.
Therefore, if your refrigerator lost power for six hours and you cannot confirm that the eggs remained at or below 40°F, the safest decision is to throw them away.
Do not assume that cooking the eggs will make them safe. FDA warns that improperly refrigerated eggs and other perishable foods can cause illness even when thoroughly cooked.
What About a 2-Hour Power Outage?
A two-hour outage is generally less concerning if the refrigerator door stayed closed.
USDA guidance says eggs should not be kept out of the refrigerator for more than two hours.
If the refrigerator remained cold and the outage lasted only a couple of hours, the eggs will generally remain safe.
However, if the refrigerator became unusually warm, use a food thermometer rather than relying only on the length of the outage.
How Can You Protect Eggs During a Long Power Outage?
Preparation can make a major difference.
Keep a Refrigerator Thermometer
A thermometer provides an objective measurement of the refrigerator temperature instead of relying on how cold the food feels.
Keep Ice or Gel Packs Frozen
Keep several reusable gel packs or containers of frozen water in your freezer. They can be transferred to a cooler during an extended outage.
Have an Insulated Cooler
An insulated cooler gives you another place to store eggs, dairy, meat, and other perishable foods.
Avoid Opening the Refrigerator
The less frequently you open the door, the longer the refrigerator can retain its cold temperature.
Consider Backup Power
A portable power station can help keep a refrigerator operating during an extended outage, provided its output and battery capacity are suitable for the refrigerator.
What If You Are Unsure About the Eggs?
When you do not know how long the eggs have been above 40°F, it is better not to take the risk.
Do not use:
- Smell alone
- Appearance alone
- Taste testing
- Whether the shell looks normal
- Whether the egg looks normal after cracking
Food-safety guidance emphasizes that you cannot reliably determine safety through appearance or odor.
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Frequently Asked Questions
How long do eggs last in a refrigerator without power?
A closed refrigerator generally keeps food cold for about 4 hours. If eggs have been above 40°F for 4 hours or more, they should be discarded.
Are eggs safe after a 4-hour power outage?
They may be safe if they remained at or below 40°F. If they were above 40°F for 4 hours or more, discard them.
Can I eat eggs after 6 hours without power?
If you cannot confirm that the eggs remained at a safe temperature, it is safest to discard them after a six-hour outage.
Can I save eggs with ice?
Yes. Move eggs to an insulated cooler with enough ice or frozen gel packs to keep them at or below 40°F.
Can I cook eggs to make them safe after a power outage?
Cooking does not necessarily make improperly refrigerated eggs safe. If eggs have been held at unsafe temperatures for too long, they should be discarded rather than cooked.
Final Answer
Eggs generally remain safe during a short power outage if the refrigerator stays closed and the eggs remain at or below 40°F.
The refrigerator itself can usually keep food cold for about 4 hours without electricity. If eggs have been above 40°F for 4 hours or more, the safest choice is to discard them.
For longer outages, use a cooler with ice or frozen gel packs, keep the temperature at or below 40°F, and avoid opening the refrigerator unnecessarily.
When there is uncertainty about how long eggs have been at an unsafe temperature, when in doubt, throw them out.
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