Leaving a coin on top of a frozen cup of water can indicate whether power has been lost while away. If the coin remains on top after returning, power was not lost. If the coin sinks partially or fully into the ice, it suggests a power outage occurred. This method is particularly useful during natural disasters, as it helps assess food safety in the freezer and refrigerator. The technique has become popular on social media and has practical implications for emergency situations.
The frozen coin trick can help determine how long you've lost power. If you return and the coin is still on top of the ice, you never lost power.
A coin on top of ice indicates power status at home: if sunken, power was lost, which can threaten food safety.
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