Quicknews
Mar 23, 2026

How to Tell If An Egg Has Gone Bad

Eggs are a foundational ingredient in kitchens everywhere, appearing in everything from omelets to baked goods.

Because they’re so widely used, verifying their freshness is essential — not just for flavor, but for food safety. Although eggs are protected by hard shells, they do spoil, and the signs aren’t always obvious. Here’s how to determine whether your eggs are still good, using practical, reliable methods.

Start With the Packing Date

Don’t confuse the expiration date with the packing date. The packing date — printed in Julian calendar format on the carton — gives a clearer picture of how old the eggs actually are. When refrigerated properly, eggs typically remain safe for four to five weeks after that packing date. For best quality, however, it’s advisable to use them within three to five weeks of purchase.

The Float Test

One of the most dependable at-home checks is the float test. As eggs age, the air cell inside them expands. That larger air pocket increases buoyancy.

To perform the test, place the egg in a bowl of water:

If it sinks and lies flat on its side, it’s fresh.

If it stands upright on the bottom, it’s older but may still be usable.

If it floats, it’s best to discard it or use it immediately with caution.

If you’re unsure how long the eggs have been sitting in your fridge — especially if five weeks may have passed — it’s safer not to take chances.

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