The chef sets out to create the ultimate chilli con carne and looks for inspiration at a cook-off in downtown Washington DC. Back in Bray, he decides to find out why diners crave painfully hot spices by feeding one of his employees an oil that's nine times stronger than a natural chilli and sending him for an MRI scan.
click here to see where to watch or .
Ready to Watch Heston Blumenthal In Search of Perfection, Season 2, Episode 6?