Truck drivers already have to endure supervision by a tachometer which logs their speeds and driving times on behalf of myriad external authorities. Why not a tachometer for tomatoes, to monitor and make explicit food miles? Food distribution can be tremedously wasteful, but invisibly so. The concept of food dates back to a study called The well-travelled yogurt pot: lessons for new freight transport policies and regional production in which the movements of a number of milk carefully measured. All ingredients of the product were included, e.g. milk, jam, sugar and the packaging, the glass container, paper label, aluminium cover, cardboard box and cardboard sheets, glue, and foil. (The paper I’ve linked to is a pdf at the bottom of the list).