How to tell if an egg is fresh?

There’s a very simple trick:
Fill a glass with water.
Put the egg in.
If it sinks and lies horizontally, it’s a fresh egg.
If it floats, it’s an old egg. In that case, it’s best to use it as soon as possible or discard it.
This test works because over time, the contents of the egg lose moisture and the internal space fills with air, causing it to float.
Why should you never wash an egg before storing it?
Although it sounds logical, washing an egg can be harmful.
The shell has a natural protective layer that prevents bacteria from entering. Because it’s porous, if you wash it, this protection disappears, and microorganisms can easily get in.
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