Everyone has eaten food on the ground, and no one else is tempted to eat it even when it’s out, especially if it tastes something very tasty. Those who do not resist temptation have one basic justification. It is believed that if the food stays on the floor for not more than 5 seconds , it can be easily eaten because such contact can not be covered with dangerous bacteria or contaminants.
This principle was known as the 5-second rule. It is now better to call it a rule and a myth . Myth, which was recently broken.
How safe it is to eat food that we picked up very quickly after dropping out on the floor is set to set up a team from Rutgers University in New Jersey, USA. For this purpose, scientists use 3 types of food – melon, bread and jelly candy . It tracks the extent to which these foods are polluted after discharging onto 4 types of surfaces – tiled, ceramic, wooden parquet and carpet . For the purpose of the survey, each pavement is kept outdoors for some time to come in contact with more airborne pollutants and micro-organisms. It is then dried to mimic the conditions at home or outdoors where we most often miss food.
In the course of the study, scientists have imitated nearly 130 different situations where each type of food has stayed on each type of pavement for periods of 1, 5 or 30 seconds, in some cases for 5 minutes. After each trial, detailed laboratory data on how well the food is contaminated and what . The results are interesting and show that the 5-second rule carries some logic, but should not be considered a pure coin.
It is found that the longer the food stays on the ground, so much more pollutants and bacteria adhere to its surface. However, it is also a fact that in some cases there is an immediate pickup of dangerous pollutants on it, that is, pollution with the first contact . It is these data that cause scientists to call the five-seater rule a myth.
The largest amount of bacteria are found on the melon’s surface, even on short stays on the ground. This is explained by its wet surface and the adhesion of the bacteria on it. At least bacteria stick to the surface of jelly candies. With regard to surfaces, the most polluted surfaces are ceramic and metal countertops, and at least the food is contaminated by contact with carpets and other rough and rough surfaces.
The fact is, even if it comes to a second contact with the floor, the food is polluted . Therefore, eating it after a drop is not a good idea, no matter where and for how long it has stayed.