How do you know when the chicken eggs spoil?

Visual Inspection:

* Shell: Cracked or broken shells are a sign of spoilage, as bacteria can easily enter.

* Yolk: A fresh yolk should be firm and round. A spoiled yolk will be flat, runny, or discolored (greenish, gray, or reddish).

* White: Fresh egg white is clear and thick. Spoiled egg white becomes thinner, watery, and may have an off-color.

Smell Test:

* Rotten Egg Odor: A spoiled egg will have a distinctive rotten, sulfurous smell.

Float Test:

* Fresh Egg: A fresh egg will sink to the bottom of a bowl of water.

* Older Egg: An older egg will sit on the bottom with one end slightly raised.

* Spoiled Egg: A spoiled egg will float. This is because air has seeped into the egg, making it buoyant.

Other Signs:

* Mottled Yolk: This can be a sign of an older egg.

* Green Ring Around the Yolk: This is a sign of bacterial growth, and the egg is likely spoiled.

Important Notes:

* Refrigerate Eggs: Always store eggs in the refrigerator (ideally in the coldest part) to slow down spoilage.

* Use by Dates: Pay attention to "sell-by" or "use-by" dates on the carton, but remember these are guidelines, not absolute guarantees.

* When in Doubt, Throw it Out: If you're unsure about an egg's freshness, it's best to err on the side of caution and discard it. Eating spoiled eggs can make you sick.

For more information, you can also consult with a food safety expert.