Coin in the freezer: All vacationers should know this bizarre life hack. If the refrigerator defrosts, food quickly goes bad due to the interruption of the cold chain.
All you need is a coin and a plastic cup. After returning from vacation or a longer trip, all you need to do is look at the coin in the fridge and consumers can be assured of security. The coin is then placed on the ice in the cup and the cup goes back into the freezer. It can even protect against food poisoning, as “RTL” reports.