I have made an effort to learn to cook noodles and rice with the near-minimum of water. For one person and 100g of rice/noodles you seem to need about 300g of water. Ideally the food doesn't need to be drained at all when it is done. You still lose some (about 100g as I recall) to evaporation.

well, yes, we are talking survival here, not gastronomy .... <img src="/images/graemlins/grin.gif" alt="" />
Ideally, it's 1 liter of water for 100g of pasta (ask any Italian ... <img src="/images/graemlins/grin.gif" alt="" />)

Thanks to all for the info. I will put more effort to stock up. However, you forgot the most important thing: Pickled Herring!