Selecting and Testing Fresh Eggs
Freshness in eggs is defined by the integrity of the internal structure—specifically the height of the yolk and the viscosity of the white. Use the float test to check the air cell: a truly fresh egg sits horizontally at the bottom of a bowl of water, while an older egg stands upright or floats due to the enlarged air pocket.
Look past the shell color and focus on the density.
Shell color is determined by the breed of the hen and has no bearing on quality or taste. Your focus is on avoiding cracks and understanding the age of the egg via simple observation.
- transparent glass bowl
- cold water
Assessing the Air Cell
As an egg ages, the liquid content evaporates through the porous shell and is replaced by air. A submerged, flat-lying egg is newly laid; a vertical egg is older; a floating egg has too much air and should be discarded.
The method.
Inspect the shell exterior
Check for hairline fractures or a powdery residue. Avoid any eggs that are visibly dirty, as bacteria can penetrate the shell pores.
Perform the sound test
Hold the egg near your ear and give it a gentle shake. If you feel or hear the contents sloshing significantly, the internal membrane has broken down and the egg is old.
Execute the water submersion
Fill a bowl with cold water and place the egg inside. A fresh egg rests on its side on the bottom. An egg that stands on its blunt end is safe but should be used within a day or two for hard-boiling.
Examine the crack-out
Crack the egg onto a flat plate. A fresh egg keeps the yolk centered and high, surrounded by a thick, gelatinous layer of white. If the white is thin and watery, spreading immediately across the plate, the egg is past its prime.
When it doesn't go to plan.
Store eggs in their original carton to prevent them from absorbing odors from other foods in the refrigerator.
Place eggs in the main body of the refrigerator, not the door, where temperatures fluctuate every time you open it.
If you find an egg is not as fresh as you hoped, it is still often functional for baking, where the structural integrity of the white matters less than in poaching.
The ones that keep coming up.
Does a dark yolk mean the egg is better?
Yolk color is dictated by the hen's diet—specifically carotenoids found in corn, alfalfa, or marigolds. It indicates the bird's intake, not the age or safety of the egg.
Are older eggs easier to peel?
Yes. The rise in pH levels as an egg ages helps the membrane detach from the shell, making older eggs the better choice for hard-boiled preparations.
How real cooks make it.
No one’s shared their version yet. Be the first to put your kitchen on the map.
Cook this your way?
Share your version — your steps, your story. We’ll feature it right here.
Add your recipe