A hexamine fuel tablet is a form of solid fuel in tablet form. The tablets burn smokelessly, have a high energy density, don't liquify while burning and leave no ashes. Invented in Murrhardt, Germany, in 1932, the main component is hexamine. A number of alternative names are in use, including heat tablet and Esbit. Esbit (which stands for Erich Schumms Brennstoff in Tablettenform or Erich Schumm's Fuel in Tablets) is a genericized trademark as it's used to refer to similar products made by othe… (More on Esbit)