At first glance, it looks strange—a coin sitting on top of a frozen glass of water. But this simple trick could save you from eating spoiled food without even realizing it.
What Is the Coin-in-the-Freezer Trick?
This clever method helps you detect whether your freezer lost power while you were away.
Here’s how it works:
Step-by-Step:
Fill a glass or cup with water
Freeze it completely
Place a coin on top of the frozen surface
Leave it in your freezer
That’s it—now you have a silent “indicator” inside your freezer.
