Before going on vacation, do not forget to take this last step home

Leaving on vacation without having your head back for what you leave home is almost impossible. So before you go, it is good to use some of the after - vacation tricks. Like the coin in the fridge.

It may be that while on vacation, there is an electrical blackout at home. If electricity does not return for more than one or two days, food in the refrigerator can melt. After the return, however, you could not notice the change if the food melted and frozen again.

But during this stage, you can be endangered by foods that are not too resistant to freezing, because they can release certain kinds of bacteria and salmonella.

Simple! Fortunately, there is a useful way to find out if your refrigerator has lacked electricity.

To do that, you need a plastic glass of water. Put it on ice. Then put a coin in it and send it back into the refrigerator.

So if you ever travel or vacation, when you return and find the frozen currency inside the water. Then you can be sure there was power outages and the fridge melted and frozen again.