Just wrote a post and it was lost to an internet glitch
Anyhow...what I said was that I do give some of the chunks in and they do have a nutritive value. I see the kiddos eat some now and then.
I have to sift, though, and then throw the good charcoal pieces back in. At least one time I got some nails in my batch. They will sometimes burn items that they have to take apart and occasionally miss a nail or 2...wood that has been donated to them but not treated lumber. They don't use it often, but I'd rather be safe than sorry so I like to try to sift through to see what might be hiding in there.
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And...while we're talking about ash, it might be worth re-posting this about the treated lumber:
Beware of ash from treated lumber....DON'T BURN TREATED LUMBER ON YOUR PROPERTY!
Quote: READ THE WHOLE STUDY HERE:
http://www.noccawood.ca/docs/cca_wood_ash.html
Edited for a spelling.