How the Sandwich Consumed Britain

The rise of the British chilled sandwich over the last 40 years has been a deliberate, astonishing and almost insanely labour-intensive achievement. The careers of men and women like Roger Whiteside have taken the form of a million incremental steps: of searching for less soggy tomatoes and ways to crispify bacon; of profound investigations into the molecular structure of bread and the compressional properties of salad. … ‘It is an absolute passion,’ one former M&S supplier told me. ‘For everybody. It has to be’.
— Sam Knight