I'm in need of a watertight container that I can use to rehydrate food while on the trail. Around 12-14oz capacity. I just did a test with a Gladware container and, while it seemed watertight, shaking it (it's going to be shaken on the trail) cause it to lose some drops so it's out of the running. Candidate containers need to handle heat (just under boiling), won't lose water when shaken or subjected to 3000' elevation changes. Need not be too sturdy as it will be protected in the pack. Any suggestions?
