I'm actually interested in this not for ramen profitability but for survival rations. I'm not some post-apocalyptic tinfoil hat wearing doomsday person, but I recognise that I live in an area that can (and has) had natural disasters from time to time. In those cases, food quickly becomes in short supply and sometimes transport isn't possible. I've been thinking about building a up a 'canned food reserve' but this is a much better solution because of the longer shelflife.

Note for the same reasons I'm investigating solar power, rainwater tanks and bottle propane for cooking/water heating.