You need to measure the water for most meals. If you are using a little alcohol burner you measure the water for the pot and just enough alcohol for the stove to get a boil. If it isn't real cold sometimes just bubbles and not a true boil is enough if your cozy is effective. Also, you need to check and see if your pot POURS, and doesn't spew the boiling water on your feet, all over the ground and everywhere but inside the bag. The little teapot/kettle idea is a good one. My MSR Titan Kettle has a little pour lip that works well, the water pours out in a nice little column that is easy to direct.
