Yessir, I almost made a similar thread about the AF Naturals. They just have a bad taste; there's no way to pussyfoot around it.
So let me be your reassurance.
Find a different use for the coals like I will, I have some incense that requires coals to use them for. (The incense is interesting stuff, produces a TON of smoke and smell from the tiniest little bit.)
It's called "resin" incense if you're interested in that.