Laurie Taylor talks to Ann Murcott, Honorary Professorial Research Associate, at SOAS, University of London about the origins and development of food packaging, from tin cans and glass jars to bottles and plastic trays. How central is packaging to global food systems and should we be concerned about wasteful packaging ? Also, Anastacia Marx de Salcedo, offers a spirited defence of processed food from a feminist, economic, and public-health perspective.Producer: Jayne Egerton