A neighbor who's a woodworker gave us a bunch of scraps to burn. There's a lot of 16" pieces of what looks like cedar decking boards. They don't appear to have any finish on them, but the ends of the raw boards have a waxy buildup. I thought it could be sap or pitch (it smells more like cedar than the cut end) but also worried it might be a finish and am afraid to burn them. Anyone have any ideas?
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