Quote:
Originally Posted by Linus
Ok. I have a question: what's the significance of the different colours of ash? I've seen gray, brown/beige, white and black. I suspect there's a chemical reason for it but I was curious if anyone knows of a layman's definition of each.
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Well, I've found the answer to my own question in a great YouTube video:
http://www.youtube.com/watch?v=u4RB5lP7yzs