Why should we always have cold food in our lunchboxes?
If we have a self-heatable lunch-box, imagine the comfort that would bring to picnics, outdoor lunches, especially in colder climates.
As for the mechanics of how it works, well that's why I'm not an inventor. I suppose any safe, effective means of heating it up would be okay. Might work like a mini-oven or mini-microwave-oven. Could be powered by batteries with optional plug. Or by some other (chemical?) way of generating heat perhaps...-- baboo, Apr 01 2002 Food Flask http://www.nimrodou...859/shopscr127.htmlCool. Does look like what I call a "Thermos." [bristolz, Apr 01 2002, last modified Oct 04 2004] Peltier Devices http://www.peltier-info.com/info.htmlGeneral info, including photos and where to buy the things. [bristolz, Apr 01 2002, last modified Oct 04 2004] More Like Mine http://www.bosfish....ighting/flasks.htmlA short fatty one. Excellent for pasta. [Helium, Apr 01 2002, last modified Oct 04 2004] Hip Flask http://www.sc.edu/f...llection/flask.htmlF. Scott Fitzgerald's when serving as Infantryman in 1918 [thumbwax, Apr 01 2002, last modified Oct 04 2004] I use a food flask. The food is still piping hot at lunchtime.-- Helium, Apr 01 2002 Food flask? I've not heard that term before. Is it like a Thermos bottle in design (which I *think* are intended for liquids).
A lunchbox outfitted with a Peltier device would probably work for making a heatable lunchbox.-- bristolz, Apr 01 2002 Yes, they're similar to a thermos flask but shorter, and fatter, with a wide brim so you can get a fork or spoon in there. You can either eat straight out of the flask or pour it into the bowl provided.-- Helium, Apr 01 2002 MRE Heaters used by the US military.-- BMCCUE, Oct 10 2005 I like it, kind of like the bags the pizza boy uses to keep your pizza warm.-- PollyNo9, Oct 10 2005 random, halfbakery