Check If Your Eggs Are Fresh or Old, Easy and Quickly

Egg shells are solid and pretty resistant, but they are also slightly porous.

When they grow old, a large cell of air is formed inside the eggs, as some air is entering through the porous, and that increases the buoyancy, making them float on fresh water.

Fresh eggs will lie on the bottom of a glass of water.

After some weeks, they will tilt keeping a diagonal or facing up position, this is when there is air, but not enough to make them completely float.

Over time, as more oxygen and gases filter in, the egg will get more and more buoyant, and will eventually float.

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Supplies

The eggs you want to test, and a glass of water.

Step 1: Put the Egg on Water and Check

Carefully lower your eggs into fresh cold water, use a spoon to avoid breaking them:

If the egg lay at the bottom horizontally, it means that it is fresh.

If the egg is at an angle on the bottom, it is still fresh and good to eat, but older (eat before the ones that are horizontal).

If the egg stands on its pointed end at the bottom, it is still safe to eat but best used for baking and making hard-cooked eggs.

If the egg float, it means that is an old egg, it may still be good, but you are more on a risk, always inspect the aspect and smell before proceeding.