把刚掉到地上的食物捡起来吃的人常会说,不超过5秒就没关系。这条“5秒规则”的出处不可考,不过流传已久,许多人深信不疑。真相是:研究显示,食物掉到地上的瞬间,或多或少都会遭细菌和病毒污染。食物接触地面的时间是1秒~6秒,差异不大,但若超过1分钟,污染率便会提高 People who just picked up the food that fell to the ground often say that no more than five seconds does not matter. This “5 second rule ” source can not test, but has long been circulating, many people believe it. The truth is: Studies have shown that food is more or less contaminated with bacteria and viruses at the moment it falls to the ground. Food contact with the ground time is 1 second to 6 seconds, the difference is not significant, but if more than 1 minute, the pollution rate will increase