Here is the sites URL and show name.
http://www.basicbrewing.com/index.php?page=radio
This part 2 of a two part series. Homebrew Toxicology Pt. 1 is great also!December 12, 2013 - Homebrew Toxicology Pt. 2
Toxicologist Paul joins us again to follow up on your questions about possible toxic materials in homebrew.