Green Mountain Grills Premium Natural Hardwood Pellets are made out of 100% kiln-dried sawdust that never touches the floor. GMG pellets are held together with the natural lignin in the wood, with no fillers or additives. The Gold Blend features a mellow blend of Red Oak, American Hickory, and Mountain Maple subtly flavors your food without overpowering it. These are some of the hardest of the hardwoods and produce a long burn with modest smoke.