The solid fuel is easily available in Japan is more than ESBIT.
Is half fired. But cut free.
Unpleasant odor and soot burning in the room but is issued at all.
Also characterized easy to vaporize. The aircraft is not carrying.
Each price is 30g * 3 = 90g, about ¥ 105.
When the calculation is only ¥ 1.2 per gram.
for example,15g fuel go to boil 200ml water within 4 min.
we can burn fuel / 30g, get boiled water 480ml in 8 min.
it looks like TRIOXINE. except less power :-)