- Cut the bottom inch off two beer cans. I chose Speights beer cans; they're the Pride of the South!
- On one pierce eight pin holes around the bottom rim and punch a quarter inch hole in the centre.
- Carefully fit the two ends together with the pierced part on top and inside the other. (This is tricky but the less you deform the top section the better.)
- Fill with methylated spirits until it you get a pool about an inch across in the top "bowl".
- Place a small coin (UK 1p, US 1c, NZ 10c) in the pool to cover the quarter inch hole.
- Light and wait. Voila.
The meths inside heats up and after about thirty seconds starts jetting out of the pin holes.
I made a small stand out of a pineapple can and boiled about a pint in just over ten minutes.
