: if I wash hands twice, are they significantly cleaner ?

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When you do the dishes and have a little residue of cheese attached to your fork that contrains you to pass a second time your sponge/dishwashing liquid to be perfectly clean.

If we applied this logic to microscopic things on our hands, that would mean that it’s better to clean them twice “just to be sure”. Since it’s impossible to know if we have particularly resistants microbes or something like that, one more soap/rince seems worth

Is this manner of thinking sounds accurate in a scientific way ?

In: Chemistry

6 Answers

Anonymous 0 Comments

I’m not sure if this is ELI5, but yes, the more you wash your hands, the more bacteria you’d scrub away.

So yes – I’d say that if you wash your hands twice, you’ll probably get rid of bacteria that you missed on the first attempt.

The best way to wash your hands is to get soap, and sing ‘Happy Birthday’ to yourself while working your palms, fingers, back of hand and in between fingers slowly and thoroughly.

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