Hexamine Solid Fuel Stove (Tommy Cooker)
A Tommy cooker was a compact, portable, solidified alcohol fuelled stove issued to British troops (Tommies) in World War I. It was notoriously ineffective and a variety of improvised alternatives were in use, but a refined version remained in use during World War II. The term also came to be applied by the late Panther and Tiger German tank crews as a derogatory nickname for the Sherman tank, which on earlier models, mainly due to a combination of obsolete armour, unprotected shells, and the highly flammable fuel, acquired an early reputation for "brewing up" when hit.
The British army still uses compact portable solid fuel (hexamine) stoves.