Use these fuel tablets for your Esbit stove. The nontoxic, nonexplosive formula is virtually odorless and smokeless.FeaturesTo cook and heat up food and beverages - Can also be used to start a campfire, grill or chimney(6x14g) & (12x14g) only - Tablets individually packed waterproofDoes not liquefy when burning, and leaves no ash residue; burns efficiently even at high altitudesEasily lights with ordinary wooden matches, and can be extinguished and saved for reuseWhen properly stored, Esbit solid fuel maintains its full functionality for many yearsEasy to handle and simple technique which cannot failBurn Time: (20x4g) 5min per 4g tablets ; (6x14g) 12min per 14g tablets ; (12x14g) 12 mins per 14g tablets