Cider

How the world's biggest cider producer makes more than 350 million litres each year - from orchards in Herefordshire, to the mill in Ledbury, to fermentation and bottling at the factory. How grafting is used to create a new sweet apple variety called Scrumptious. How a by-product of making cider - CO2 - is used to make fire extinguishers. The history of the Victorian apple-breeding boom, and recreating one of Queen Victoria's favourite baked apple desserts.