Thought I would post this. Went out for a couple of days...cooked some trout on an Esbit.
Snow Peak 900ti frying pan (up side down on esbit)
Aluminum foil wrapped trout
olive oil and seasoning
In 9-10 minutes the fish cooked up great. I used 2 cubes to make sure they cooked, but the heat was so hot I believe you could get away with just one cube. Might try that at the house when I bring a fish back from some place. I am pleased with the results.
I like the Esbit, simple, duel purpose as fire starter. With one cube per 2 trout I certainly believe it will be a weight savings on consumable fuels.