Hexamine fuel tablet

As with trioxane, hexamine has an almost unlimited shelf life if stored properly, in a sealed dry container.

However, the heat given off cannot be easily adjusted, so water can be boiled, but cooking requiring simmering is more difficult.

Esbit's Safety Data Sheet states combustion can create formaldehyde, ammonia, nitrogen oxide, hydrogen cyanide and ingestion may cause nausea, vomiting, gastrointestinal disturbances, and kidney damage.

When burned, the chemical oxidation of the fuel yields noxious fumes, which requires cooking foods in a container, such as a pot or pan, with a tight fitting lid.

[1][better source needed] As hexamine is a precursor for the simplest synthesis of the chemical explosive RDX,[2] its possession is tightly regulated in the United Kingdom.