Hear that? It's the sound of a pack of baristas readying their keyboards to argue "There's no such thing as the perfect cup of coffee".
And they'd be right. This informative short from the American Chemistry Society isn't attempting to convert the great and good to flat whites only - it's an exploration of the science behind the perfect process from bean to brew.
From water ratio to temperature via grinding and roasting, the following five minute are going to turn you into a coffee snob. In a good way.