The ‘5-second Rule’ is Disproved in New Study

Child eating salad a over white background
                    Child eating salad 

A new study has found out that eating food from the floor — no matter how fast you pick it up — is dangerous to your health. The researchers found said that bacterial contamination can cause foodborne diseases.

Key takeaways:

  • Picking up food that has fallen to surfaces within 5 seconds is not fast enough to prevent bacterial cross contamination. This can occur instantaneously.
  • Bacteria travel faster in moist surfaces, thus wet food will have higher risk of picking up bacteria.
  • Longer contact times increases the amount of bacteria transferred from the surface to the food.

“Bacteria don’t have legs,” says Prof. Schaffner, “they move with the moisture, and the wetter the food, the higher the risk of transfer. Also, longer food contact times usually result in the transfer of more bacteria from each surface to food 

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