Each episode of the Supply Geek podcast focuses on one material or product which touches modern life for all of us, and attempts to uncover the little-known supply chain behind it. Using the format of a one-to-one interview with an expert (or geek) who can relay their knowledge and experience, the viewer/listener is taken on a journey to understand its origins, the steps it takes before reaching the consumer, which products it can be found in, and the people and environments that support its journey. We discuss the challenges in the supply chain, how these can be overcome and highlight best practice examples which prove that this material or product has a path to a sustainable and resilient future.