Take a look at this slimline kitchen set-up that utilizes the Cobalt Blue Soloist stove and a 16 oz aluminum bottle as the pot. The pot is much more durable than a Heineken, especially if you don't cut the top off. Very stable, center of gravity right over the pot, very nice.
Clarification concerning Iso91 in the stove: it burns almost clean under a Heineken pot. Other pots it burns sooty. The indented pot makes a difference. Also, the iso is a little harder to ignite in such a small cavity.
I made a couple test burns today to review my findings.
Well that's what I get for posting my question from a tree stand. I was deer hunting. I meant performance for the aluminum bottle. It looks like there might be heat loss up the sides. Did you get a boil with one ounce for 16oz of water? BTW, would you consider this stove pressurized?