Better Wood Products Fatwood is harvested from the stumps of pine trees that contain a high concentration of natural resin. This organic, 100 percent natural resin allows the fatwood fire starter to be started with a single match and gives a sustained flame. Fatwood is 100 percent natural, with no chemical or additives. Fatwood is harvested from non-endangered, non-rainforest, non-living trees. User friendly, safe, clean and non-toxic. Indoor or outdoor use. Indefinite shelf life. Can be started with a match, even when wet. Verified by SCS Global Services under their Salavage Wood and Fiber program. Great for use in barbecues, campfires, wood stoves, fire pits, pellet stoves, chimneys, coal stoves, fireplaces.