A new iPhone app, linked with a refractometer and decades of coffee science, can help you brew the perfect cup, for only $350. Don't believe that such a thing is possible? Gizmodo sums up the natural inclination against believing that science can tell us what tastes best:
People accept scientific measurements as the truth about a lot of things. Mass. The temperature at which water freezes. The size of the earth. But it's hard to swallow the idea of scientifically measuring how something tastes. Taste is subjective. Right? Not anymore—thanks to MoJo, a gadget that quantifies a cup of coffee's flavor.
