Everyone has heard of the famous 5-second rule regarding most food products. The rule that is fervently practiced by people across the globe states that if a food item falls to the ground, it can be picked up and consumed within 5 seconds. The basic idea revolving around the same is that germs take time to get in contact with the food and make it harmful to consume. However, there is a science-backed opinion that differs from the same, per Food and Wine. Experts believe that even 5 seconds is too much time for food to get contaminated on the floor.