posted 3 years ago
Personally, I wouldn't put it in compost or food growing areas. I can't find much on wood creosote specifically, but creosotes in general don't appear to be particularly healthy. Ash/char is a different story, as long as you're mindful of the pH of your soil.
I think of wood creosote as energy to be utilized, carefully. For my money that's the best method of disposal.