Place the egg into a bowl of cold water.
The water level should be about 2 times higher than the egg.
Observe what the egg does;
- Sinks? … … then it’s Fresh!
Fresh eggs will sink to the bottom of the bowl, and probably lie on their sides.
- lies on the bottom but bob slightly … …
= about one week old.
- Balances on its smallest tip, with the large tip reaching for the top,
= it’s probably close to three weeks old.
- Floats at surface?
= it’s bad and should not be consumed!
Eggshells are very porous, and an egg’s shelf life diminishes as more air enters the shell. The more air that enters the shell, the more buoyant the egg becomes.