There are two common fire extinguisher powders in household
units. One is glorified baking soda, the other is mono
ammonium phosphate. The baking soda should come off with
warm water, the other I'm less sure about.

--
Christopher A. Young
Learn more about Jesus
www.lds.org
..


"mm" wrote in message
...

I've googled and the powder in an ABC extinguisher isnt'
dangerous,
though I don't think that item included eating it, if some
were to
fall on to food. I'll have to look more about that.