Brussels sprouts grown in Norfolk are harvested by machines with incredible wastage and efficiency, taken by lorry to a packing department in the Midlands, sent to a factory where they are washed, cleaned, sorted by size, packaged or frozen and finally sent back again to Norfolk to appear in the supermarkets, wrapped in cellophane or a dinky little net bag... A study conducted by the SAFE alliance in 1995 showed that food was travelling 50% further before it reached the supermarket than it did in the late 1970s.