Wolfepack...Sorry to have misled you with only part of the story... the tuna was cooked with some Uncle Bens converted rice + chicken bouillon cube (stored in 35mm film cans). Made a nice mid day meal and cooked fairly quickly. IIRC the little esbit tabs were found in the miniature model "steam engines" and too expensive for us to use...we used the cardboard/paraffin or paraffin/tuna oil for fuel....our tent lights were home made candles in Gerber baby food jars... regards Les