http://www.flickr.com/photos/tibbs735/8560801316/
I had a growing pile of staple foods like rice and beans that were just sitting around in thin, plastic sacks. It should last several years in its current form.
I did not want to follow the American route of messing around with massive, plastic buckets and mylar bags. I also could not find dry ice for sale anywhere. So I bought some 5 liter jerrycans from here:
http://www.ampulla.co.uk/Shop-For-Plasti...0-136-639/
They came fairly quickly, within a few days at the same time as the Ebay'd sachets of silica gel and O2 absorbers.
They each take around 5200 grams of rice, or 4800 grams of beans. That's around 34 150 gram servings of rice per jerrycan. They each contain 1 sachet of silica gel and O2 absorber.
I hope you find my method useful; I wanted to contribute something real to this site.