Have you ever came from work, or after the long trip and noticed that your digital clocks showing the wrong time?
“Certainly there was no power outage!” You might think. Even if it was, you simply cannot know how long there was no electricity, do you?
Maybe it was for a few days, leading to defrost food and its deterioration. When electricity comes back, foods freeze again and you almost do not notice that they were thawed.
As we know, it can be very dangerous, because some foods are at risk of spreading salmonella and other bacteria!
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