Though Ive touched on this subject before.I have just got around to reading next weeks special offers from MAKRO,A pot 200g,was 59p,its now increased to 75p,(still much cheaper than the camping shops.)
Their spec offer is 3 for 2,"chaffing burning Fuel,3.5hrs,200g..for £1.50p.I use them for a quick brew rather than Hexamin.Vapours a lot safer too!