Today I wanted to see if I could boil water in the bottom of my PSK tin. I knew theoretically it should be doable but I wasn't sure if it would leak under the heat or what.

Tried it over an esbit stove outside (~40 deg F) and it didn't reach a rolling boil with a single esbit tab (no wind brake) but the water was hot and more importantly it didn't leak. In a real situation it would probably be set up over an open fire.

It doesn't hold that much water but it beats tin foil!