Why to Put a Coin in the Freezer, Before Leaving The House

When you come back from a long trip and you notice there has been no power outage, you wonder how long there was no electricity. Maybe it’s been just a few hours, but also there is a possibility it’s been for days. In this case, your food have been defrosted and spoiled, so the best would be to throw it out right away. Food freezes again when electricity comes back so you cannot notice it was thawed.

This can be life threatening because the food may spread salmonella and other bacteria. However, there is a trick you can use to find out how long your freezer was without any power. This way you will discover if your food may be consumed or it spent too much time being warm.

The food can stay safe without power at least 4 hours, only if the fridge is left unopened. The door of the fridge should be closed as much as possible to keep the cold temperature. The food in the freezer can stay safe without power for 48 hours, but only if it is full. The food is safe in the freezer for 24 hours if it is half-full.
These are the 3 needed simple ingredients:

  • Water
  • A coin
  • A cup

Pour some water into the cup and place it in the freezer. When there is only ice in the cup, place the coin on the top of the cup and put it back into the freezer.
Next time you come back from a long trip, take a look at the coin.
If the coin is still at the top or in the middle of the ice cubes in the cup, there was no electricity, but only for a short period, which is why the water was only partly melted.
In addition, if the coin is at the bottom of the cup, it shows that there was no electricity for a long period, which caused the water to dissolve completely and thus the coin sank to the bottom. If this is the case for your freezer, do not consume the food that is in your freezer.
Isn’t this an amazing trick?
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