Anne Miller wrote:Thanks for starting this thread. Great question and thought provoking.
I know that the tread is using activated charcoal to brush teeth and other uses.
How does this differ from wood ash? Does it not make the potassium hydroxide? I am assuming that wetting the wood ash forms lye which is what is burning the skin?
Yes, charcoal activated or otherwise.. are the chunks of black, partially combusted/not fully burned wood, mostly the gases have been driven out and burned (aka smoke).. ash is the whitish/ gray powder that does not typically burn up in home wood stoves and camp fires .
Yes, the ash portion makes potassium hydroxide = lye
I have seen small burns from this as my grandmother made soap, I have had minor burns from ash getting on sweaty skin, and settling into the wrinkles, like on the inside of my elbow. .. it's a lot like getting poison ivy
Knowing this would you use wood ash to clean your teeth?