Figuring two pounds of food per day per person, for three that's 42 pounds in (mostly/majority) dry food for a week, couldn't imagine packing that. But, as they say; whatever works.

And these should be in every pack. smile They are as hard as a rock and last a long time. Just don't get one stuck in your throat when hiking, almost happened to me when I was puffing up the mountain.
This is the mega-box, but they come smaller...
[Linked Image]