No
The Mythbusters famously tested this one and determined the 5 sec rule had no merit what so ever.
Once food hits a surface it is contaminated instantly.
They tested placing different foods on a surface for less than 5 seconds, and more than 5 seconds and then tested bacterial cultures from both. The results were the same.
No, not at all. If it comes in contact with contaminants, it doesn’t matter how long it’s in contact with them. The germs and contaminants are still there no matter what. Now, most contaminants that your food could come on to contact with are completely harmless, but some of them aren’t, and it’s a dice role to see which ones you get.
So, no, the 5-second rule is not a good measure of food safety.
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