Field Trip: Hario USA - Edwin Demos a Halogen Bar

As magical as it is tasty, commercial grade halogen bars are configurable to brew at a flatline temperature, which is fairly unique amongst coffee brewing methods. When we visited Hario USA, Edwin Martinez showed us how this awesome machine works -- and while it would be rare to use these at home (or even to see them in cafes in the US, actually), we thought the mad science + brewing tips shed some great light on making great coffee in general.