04:32The Food ChainThe Art of FermentationBBC World Service Duration: 27 minutes Thu 31st Aug 2017, 04:32 on BBC World Service South AsiaAvailable for over a yearListen nowWe travel to Tennessee to meet Sandor Katz, a man fascinated by fermentation. Show more GenresFactualFood & DrinkFormatsMagazines & ReviewsBrandThe Food Chain Source: BBC Online