Premier Foods plc, the UK's largest food group, has become the latest manufacturer to commit to sourcing palm oil more sustainably and sent a signal that CSR issues remain important to the company despite the challenge of doing business in a recession. In this month's Sustainability Watch interview, Ben Cooper spoke to Premier's CSR manager Ian Bowles about the Hovis maker's move on palm oil - and the company's moves on to cut waste, energy and water use.