Here, in France, aside the Esbit stove, we can find this "re-heating set" :
This "made in France" product contains :
- 6 solid fuel tablets ("no alcool, no petroleum, non toxic")
- 1 little box of regular safety matches (wood)
- 1 foldable piece of cardbord, to hold the hot meal metal box/carton (?)
- 1 flat pre-cut rectangle of metal (steel ?) ; has to be folded to form a support for your pan (like an Esbit stove)
It can be re-flattened after use. And re-used a few times.
A note on the side of the box explains :
"can be used to heat 6 x 400g of food or to bring a 1/2 litre of water from 20°C to 70°C"