A flavor chemist explains the science of burger smashing and how the order of your toppings affects how they taste. Plus a man in search of the perfect burger lays out exactly what he's looking for. (Repeat)

Come see The Sporkful live on stage at the Taste of Chicago! Saturday, July 11 at 1:30 pm in the Food for Thought area. Guests will include Spoon the band, Doug Sohn of Hot Doug's, an opera singing donut maker, and a mathematician who loves pi and pie. Plus discussion of summer food festival strategy and an Oreo cookie eating activity. See you there!