Never throw away perfectly good eggs again, and stop guessing whether they’re safe after their printed date. Here’s a simple, reliable method to tell if an egg is still okay to use.
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Eggs can often be used safely beyond the date stamped on the carton if you check them properly. Rather than relying only on the sell-by or best-before date, use a few quick, straightforward tests to determine freshness. These are safe, practical checks anyone can do at home.
Float test: the easiest home check
Fill a bowl with cold water and gently place the egg in it. What happens next tells you about the egg’s age:
- If the egg sinks and lies flat on its side, it’s very fresh.
- If it sinks but stands upright on the bottom, it’s older but usually still safe to eat—use it for baking or hard-boiling.
- If the egg floats to the surface, discard it. Floating eggs have built up gas from bacterial breakdown and are no longer safe to eat.
Sniff test: trust your nose
Crack the egg into a clean bowl and smell it. A fresh egg has little to no odor. Any sulfurous, sour, or rotten smell is a clear sign the egg is spoiled—discard it immediately. The sniff test is one of the most reliable indicators of safety once the shell is broken.
Visual check: look for abnormalities
After cracking the egg, inspect the contents. The white should be clear and slightly thick, and the yolk should be rounded and intact. Signs of spoilage include:
- Cloudy, discolored, or watery egg white
- Pink, iridescent, or green tints
- Unusual spots or foreign material
Some cloudiness in very fresh eggs is normal and indicates dissolved carbon dioxide. Any odd colors or particles, however, mean you should toss the egg.
Storage tips to extend shelf life
- Keep eggs refrigerated at or below 40°F (4°C) to slow bacterial growth.
- Store eggs in their original carton on an inside shelf rather than the refrigerator door to maintain a consistent temperature.
- Use older eggs for hard-boiling or baking, where they perform well even if not at peak freshness.
Final notes
These simple steps—the float test, sniff test, and visual inspection—help you decide whether an egg is safe to use, reducing waste without risking foodborne illness. When in doubt, throw it out: don’t taste a questionable egg to check it. Following proper storage and handling practices will keep eggs safe and extend their usable life.