Fresh Grounds: The Search for the World's Rarest Coffee - a podcast by BBC Radio 4

Dan Saladino meets the plant hunters searching for the world's lost and forgotten coffee varieties and Michael Pollan, author of This is Your Mind on Plants, explains how caffeine helped usher in the modern world.

Produced and presented by Dan Saladino.

Further episodes of The Food Programme

Further podcasts by BBC Radio 4

Website of BBC Radio 4