Safe, clean and efficient. Burns HOT up to 1358'f/737'C. Burns at 10,000 ft + of Altitude. Burns at -23'F/ -30.5'C. Does not evaporate, freeze or melt. Water-soluble (cleans up with water). Byproducts are carbon dioxide, water and sand. Smokeless & odorless. Non explosive. Boils water easily. Has a long shelf life. Tested and approved by the U.S. Military. No EPA restrictions (not a hazmat). Approved for transportation by airline or via mail. Quick, Simple and Green.