Bleuet 1350 Degree Smokeless 14 gram Solid Fuel Cubes Individually packaged in water resistant, blister packs. Approximately 15 minutes burn time per cube. Can be extinguished and re-lit, resuable. One cube will bring 1 pint of water to a rolling boil in less than 8 minutes - strong heating output. Ignites with match or lighter Solid Fuel Cube ignites with match or lighter, non toxic and biodegradable , leaves no residue burns at 1300 degrees for 19 minutes can be extinguished and re-lit , reusable one cube will bring I pint of water to a rolling boil in less 8 minutes