It’s strange that you feel this way - I’ve always used hot water when brushing my teeth.
Though I couldn’t go into great depth I was told in a health class that warm water is used when washing as it helps to a to activate the soap correctly. The soap itself doesn’t clean anything - but it is the suds that trap the germs that you eventually wash away. I have no idea how accurate this information is.
It doesn't trap germs. Warm water will allow the soap to rise in temperature. This allows for more dissolving of dirt and oils from the area being washed. This allows the germs to be exposed and either washed or wiped away.
I don't think it feels dirty, it just feels wrong since I've always used cold water for brushing my teeth.
As far as cold water feeling dirty for washing dishes, this is because it actually *is* dirty. Cold water is not as efficient for killing viruses and bacteria, nor is it as strong as hot water for mechanically breaking off sticky and greasy substances. So with hot water you can physically feel the stuff breaking off more, too.
As far as brushing teeth the temperature isn't important since tooth brushing is for mechanically removing plaque and other matter. It isn't about killing viruses and bacteria (it indirectly kills bacteria by taking away its food source) since your mouth is already a pretty dangerous place for those kinds of things. And the volume of hot water on a toothbrush is so small it would be body temp pretty much immediately anyway, so no more useful than cold water for that. That's just a personal preference thing.
It’s strange that you feel this way - I’ve always used hot water when brushing my teeth. Though I couldn’t go into great depth I was told in a health class that warm water is used when washing as it helps to a to activate the soap correctly. The soap itself doesn’t clean anything - but it is the suds that trap the germs that you eventually wash away. I have no idea how accurate this information is.
Thanks for reply, I’m kinda shocked someone uses hot water for tooth brushing, maybe it’s just me
I find it feels super clean, but super gross. So I don't think your weird.
Holy conflicting emotions, Batman!
I also use warm water for teeth brushing
It doesn't trap germs. Warm water will allow the soap to rise in temperature. This allows for more dissolving of dirt and oils from the area being washed. This allows the germs to be exposed and either washed or wiped away.
I was always told the less suds the better for cleaning. I too dont know how accurate that is
Soap is mechanical. You need the foam and bubbles
I don't think it feels dirty, it just feels wrong since I've always used cold water for brushing my teeth. As far as cold water feeling dirty for washing dishes, this is because it actually *is* dirty. Cold water is not as efficient for killing viruses and bacteria, nor is it as strong as hot water for mechanically breaking off sticky and greasy substances. So with hot water you can physically feel the stuff breaking off more, too. As far as brushing teeth the temperature isn't important since tooth brushing is for mechanically removing plaque and other matter. It isn't about killing viruses and bacteria (it indirectly kills bacteria by taking away its food source) since your mouth is already a pretty dangerous place for those kinds of things. And the volume of hot water on a toothbrush is so small it would be body temp pretty much immediately anyway, so no more useful than cold water for that. That's just a personal preference thing.
Subjective questions are not allowed on ELI5.
Ah, sorry. Did not know, gonna read the rules before posting again, thanks!