• Bacteria can stick to food when it falls on the floor

    The 5 Second Rule – revisited?

    The 5 Second Rule: should you eat food if it drops on the floor?

    Recent research by has hit the press this week, reported as concluding that bacteria may not transfer quickly to some foods when dropped on the floor, and therefore the 5 second rule may apply. I carried out an experiment and put some special powder on the floor to simulate bacteria, and then dropped some bread on the floor and picked it up immediately. The bread looked fine in daylight (see the left of the image), but under the UV light showed up all the powder that had transferred (right of image) – showing what can be picked up if you drop food on the floor!

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