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Test egg freshness in a glass of water

Check how fresh a raw egg is with a glass of cold water.

Time
⏱ 2 min
Difficulty
◆ easy

What you need

  • Glass
  • Cold water
  • Raw egg

How to do it

  1. Place the raw egg in a glass of cold water.
  2. If it lies flat on the bottom, it is fresh. If it stands upright on the bottom, it can be up to 3 weeks old. If it floats at the surface, it is older.

Why it works

Over time, liquid evaporates through the shell and air is left behind.

Sources

This is where we found the tip. The badge above shows how well it is backed up.

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