Saw some information over on survivalblog last week about using nitrogen gas to pack buckets of food. Looked around and saw the technique used by everyone was pretty much the same. Pack grain in buckets, use a wand attached to a hose, on a regulated nitrogen gas cylinder... fill the container with nitrogen, by letting it flow thru the wand at the bottom of the bucket... let flow till a match lit and at the corner of the lid (mostly closed) goes out (from lack of oxygen). Run a while longer and seal the lid. Seems relatively simple, and easier than dealing with dry ice. I've got to make a call to the welding gas distributor in town (they sent a rental bill on an oxygen cylinder I returned last month), I'll find out if they have small tanks available. Anyone used nitrogen for sealing the bulk grains?