Ecoflame has revolutionalized sterno with earth-friendly cans of warming fluid made with sugar cane from Brazil. Clean, smokeless and odor-free, the cans can be reused again and again, when refilled from the 2 litre recyleable bottle supply. Going camping? Take along this stack, and cook elegantly for up to 12 hours on an open flame. Cans come in 1, 2, 4 or 6 hour sizes. They also make a lighter fluid. Available on Amazon and at Bed Bath and Beyond.