Originally Posted By: jaywalke
...you also might want to consider the penny trick: put a penny over the center fill hole. It ups the pressure more, but will flip out of the way if it gets too high.


I just tried the penny...didn't make any difference. Boiled 2 cups in about 9 minutes and total burn was 17 minutes (kitchen cook top test). The flames seemed more stable than without the penny but I've had longer total burn times. I did it twice just to see and it took about a 1/2oz. of fuel (by weight) to boil 2 cups of tap water and needed 1oz (by weight) to fill with enough extra fluid to prime in cold but not super freezing weather.