How fresh is that egg? How to tell freshness in an egg.
An air cell (space) forms when the contents of the egg cool and contract after the egg is laid. The air cell usually rests between the outer and inner membranes at the egg’s larger end. (see: Anatomy of a Chicken Egg) |
 |
|
The egg white is clear in this egg and slightly runny, but the yolk still has some firmness to it. This egg is still fine to eat but best to be used in baking. |
After 3 weeks this egg began to float indicating it cannot be used...
|
 |
when broken and released into a pan, the egg white was runny and the yolk was flattened. This egg should be discarded. |
 |
Science of Cooking with Eggs