Fresh or not?

How to quickly identify a good egg without having to crack the shell

Leakage

Eggshells allow gasses to pass through and, as the egg gets older, air leaks in.

Bad eggs float

Old eggs gradually accumulate an air pocket, forcing them to float to the top of the glass.

What’s inside?

Fresh egg yolks are bright and round, older eggs have a runnier white, and rotten eggs smell of sulphur.

Good eggs sink

Fresh eggs are crammed full of yolk and white and sink to the bottom of the glass.