Eli5 why do people say to wash dishes or your hands in warm water when cold slows down bacteria growth?
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We were taught to wash with hot, rinse with cold. Stays out of the “danger zone” that way. Bacteria is everywhere and lukewarm is it’s favorite temp.
We were taught to wash with hot, rinse with cold. Stays out of the “danger zone” that way. Bacteria is everywhere and lukewarm is it’s favorite temp.
We were taught to wash with hot, rinse with cold. Stays out of the “danger zone” that way. Bacteria is everywhere and lukewarm is it’s favorite temp.
Dirt and oils on the hand are slightly easier to remove with warmer temperature water. This is where bacteria and pathogens mostly live. Soap does harm them directly but most of the antibacterial action comes from scrubbing and washing bacteria off. Washing bacteria off with soap and water doesn’t require a certain temperature.
The cold temperatures that inhibit bacteria requires very cold sustained temperatures that are not comfortable to people.
Dirt and oils on the hand are slightly easier to remove with warmer temperature water. This is where bacteria and pathogens mostly live. Soap does harm them directly but most of the antibacterial action comes from scrubbing and washing bacteria off. Washing bacteria off with soap and water doesn’t require a certain temperature.
The cold temperatures that inhibit bacteria requires very cold sustained temperatures that are not comfortable to people.
Dirt and oils on the hand are slightly easier to remove with warmer temperature water. This is where bacteria and pathogens mostly live. Soap does harm them directly but most of the antibacterial action comes from scrubbing and washing bacteria off. Washing bacteria off with soap and water doesn’t require a certain temperature.
The cold temperatures that inhibit bacteria requires very cold sustained temperatures that are not comfortable to people.
Well, that’s kinda redundant since your goal is to *remove* the bacteria, not slow it down. Plus unless you’re keeping your hands in freezing water, probably not gonna matter for long.
That said, the reason for dishes is that heat tends to loosen any muck or grime. Makes it easier to scrub off.
That said, for your hands it isn’t relevant. Unless you’re washing with boiling/or freezing water, the temperature isn’t likely effecting much.
Well, that’s kinda redundant since your goal is to *remove* the bacteria, not slow it down. Plus unless you’re keeping your hands in freezing water, probably not gonna matter for long.
That said, the reason for dishes is that heat tends to loosen any muck or grime. Makes it easier to scrub off.
That said, for your hands it isn’t relevant. Unless you’re washing with boiling/or freezing water, the temperature isn’t likely effecting much.
Well, that’s kinda redundant since your goal is to *remove* the bacteria, not slow it down. Plus unless you’re keeping your hands in freezing water, probably not gonna matter for long.
That said, the reason for dishes is that heat tends to loosen any muck or grime. Makes it easier to scrub off.
That said, for your hands it isn’t relevant. Unless you’re washing with boiling/or freezing water, the temperature isn’t likely effecting much.
Cold slows down bacterial growth while the stuff is cold. Bacterial growth during the short period of washing the dishes or hands doesn’t matter.
However, warm water is better at removing dirt, including bacteria.
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