Where do artificial flavors come from? Well whether it's your average store bought yogurt, granola bar, or even butter, a lot of food we eat today is full of artificial flavoring. Why did this happen? Well it actually has to do with the strange history of vanilla (yes! boring old vanilla) and the human perception of taste. How does it all work? Watch the episode to find out!

Originally released by Knowledgemotion, 2017. Streaming video file encoded with permission for digital streaming by Infobase on February 21, 2020.