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 Apple Blend features a mellow blend of Apple Wood, American Hickory, and Red Oak and is mature but gentle. If you’re unsure about which pellets to use, choose the Apple blend for hardy flavors. You can’t go wrong with this one!