In a conversation from 2014, Ira talks marinade myths, charcoal chemistry, and the elusive “smoke ring”—the science behind barbecue and grilling.Are marinades a myth? How does the elusive “smoke ring” form? And can the debate over gas versus charcoal be settled at last? In this episode of our “Food Failures” series, barbecue and grilling expert Meathead Goldwyn looks at the science behind the grill and offers tips for controlling smoke, temperature, and moisture. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.