Composting Ash

Anonymous added on March 15, 2014 | Answered

I burn ecobrite coals and am wondering can I compost the residue ash?

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Certified GKH Gardening Expert
Answered on March 15, 2014

Most ashes are safe to mix into your compost pile, but coal ashes are not. They contain sulfur and iron in amounts high enough to damage plants. Therefore, I would not recommend putting this coal or coal ash into compost, as these traces of heavy metal are not healthy.

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