Why do some people put a coin in the freezer before travelling?

A simple hack can reveal if your freezer lost power. Placing a coin on frozen water shows if ice melted and refroze. This indicates potential food safety issues after a power cut. While easy, it does not measure duration. Always inspect food for other signs of spoilage. Keeping a full freezer and minimizing door openings helps maintain temperature.

Why do some people put a coin in the freezer before travelling?
A simple hack can reveal if your freezer lost power. Placing a coin on frozen water shows if ice melted and refroze. This indicates potential food safety issues after a power cut. While easy, it does not measure duration. Always inspect food for other signs of spoilage. Keeping a full freezer and minimizing door openings helps maintain temperature.