Every summer, there has been a constant debate about whether watermelons should be wrapped in plastic wrap and put in the refrigerator. First, some news was widely circulated among friends: Then some media said that they had done experiments: watermelons covered with plastic wrap had ten times more bacteria than watermelons without plastic wrap. This experiment looks like this: A reporter bought a watermelon, cut it into two halves, wrapped it with plastic wrap and not wrapped it, and put it into the refrigerator. After 17 hours, I found a laboratory and tested the number of bacteria. The results showed that the number of bacteria on the surface of watermelon wrapped with plastic wrap was 1136, while that without plastic Read More …