This Emergency Fuel is a patented blend of volcanic rock, wood pellets, and paraffin wax. This patented formula is what makes the Emergency Fuel water resistant for use in even the most severe weather. The Emergency Fuel produces a 12-16 inch high flame for 15-30 minutes depending on conditions and amount used and will burn in winds in upwards of 30 MPH once it is lit. Anytime, anywhere, a fire is needed the Emergency Fuel provides a safe, clean, environmentally friendly way to start that fire.