Many people have the habit of putting a coin in the refrigerator when they go out.

Putting a coin in the refrigerator is a very wise life skill for China people when you are not at home.

As we all know, the food in the refrigerator is most afraid of power failure. If the power failure lasts for a long time, the food in the refrigerator will deteriorate. Even if the power is cut off for several hours, there is still a cooling process after the refrigerator is restored to power. In fact, the number of bacteria in food has greatly exceeded before, greatly shortening the shelf life of food. Without knowing, we can't judge whether the food in the refrigerator has thawed or deteriorated, and it is very dangerous to eat the food inside.

Last time a friend came to my house and told me that this problem was easy to solve. Just put a coin in the refrigerator. I didn't believe it at that time. I looked it up on the internet and found that this method does exist, so I quickly shared it with you. Putting a coin in the refrigerator can keep the food delicious.

It is scientific to put coins in the refrigerator before going out. It's not a funny superstition, but a certain scientific truth. It exudes the experience and wisdom of life, exudes the means of life, and is a summary of the loss of life. I guess uncle is also a learned man.

Then I tried it, and it was really good. At least you can know whether the refrigerator is civilized and whether the food is "zombie meat". In order to prevent and deal with it in time. Besides, I found that the coins in the refrigerator were in the water, not on the ice. You can also know that the refrigerator is damaged and the program is not troublesome.

The second question about the placement of coins is the placement of coins. The reason for this doubt is that when the refrigerator is out of power, the melting order of water in the cup will have a certain relationship. In my impression, after a completely frozen bottle of Bot melts, the outermost ice will melt first. Because the outermost layer of ice is closer to the air, the ice will melt faster. For the cup in the refrigerator, will the water outside the cup be the same after the power is cut off?

When the coin is placed in the center of the water cup, the water cup will only melt after a short power failure, which will not cause the coin to sink into the water. Meanwhile, there is no thick ice layer in the refrigerator. Will the impact be greater after the power outage?

In fact, these are several important points that need to be verified. So it's best to put coins outside the water cup and embed them vertically. As long as the ice melts into water, coins can fall directly on the height, and the change of coin falling can be seen more clearly. The inlay is placed vertically on one side of the cup wall, and the contact area is small, which can make coins sink more easily. This is my optimization scheme based on the above doubts. You can try it in practice.

? What if the power is cut off for a short time and the food in the refrigerator is not affected? In hot summer, the air conditioner is on at home, and the old community is prone to short-term power outages. Although short-term power failure will not seriously deteriorate food, it will still have a certain impact on the freshness of food. In this case, how to reduce the impact on the refrigerator? 3 small coup can be collected.

1, prepare the freezing bag: Usually, several small plastic bags can be prepared, filled with clean water, and then frozen into ice in the freezer. In the case of short-term power failure, these freezing bags can keep the refrigerator low and keep the food fresh.

2, the freezer is full: the fuller the freezer, the less likely it is to freeze and the less likely it is to deteriorate.

3, change food: the food in the fresh-keeping place should be changed frequently, especially some things that have rotted or come into contact with spoiled food, it is best to clean up.