Presumably boiled on a fireplace nearby; it's basically a portable version of the aeropress http://vimeo.com/40980282 http://vimeo.com/40980282 It would be coo

Presumably boiled on a fireplace nearby; it's basically a portable version of the aeropress http://vimeo.com/40980282 http://vimeo.com/40980282 It would be cool though if it could boil the water too... but that's more complicated + litigious if you get it wrong ;)