Special collections

There isn’t an easy way to build a playlist, at least I haven’t found one. This is the next best thing, links to pages that gather all the episodes on selected specific topics. I hope to keep adding to these.


All of the micro-episodes on the history of wheat and bread, originally broadcast as part of the Dogs Days of Podcasting challenge


Ripe coffee beans in farmer's handsEpisodes have featured coffee culture, coffee history, coffee economics and even coffee taxonomy. But not how to brew the best cup, because some things are sacred.


Jean-Paul Sartre smokes a pipe and drinks a coffee at a café in ParisQuestions of taste, good taste, ethics, and other things that might reasonably be thought of as philosophical in nature.

Seeds and breeding

Cleaning radish seedsGathering together the episodes that deal with seeds, plant breeding and the need to conserve and use agricultural biodiversity.