Why is it fine to wash my hands with hot soapy water but I must wash and then disinfect hard surfaces?

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Without stepping deeply into current events, I’d love some answers!

I spent the day cleaning (as I suspect many others did as well).

For personal hygiene, the guidance is to wash hands with soap and water for a minimum of 20 seconds. Soap is effective, especially when used well. I get that.

However, there’s lots of mixed information about the best way to clean hard surfaces like countertops and doorknobs.

If I simply scrub and rinse those surfaces with a soapy solution, would they somehow be less clean than if I scrubbed them and then disinfected with a bleach solution, peroxide, or some other disinfectant?

Just trying to stay clean and safe over here… thanks!

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6 Answers

Anonymous 0 Comments

Soap molecules are made up of two parts, a head that binds to water and a tail that hates it. The tail end of the molecule will try and dig its way into any particle it can find, such as dirt, grime, and yes even germs. Once the tail has bound to the molecule, it’s washed away with the water since it reduces the surface tension, or makes the water flow more. In other words, soap works because it washes away. You could theoretically wash your surfaces with soap and water, but you’d need a place to drain it away, so it’s better to just disinfect instead.

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