Christopher Hendon

You're just basically sticking two pieces of conductive metal into coffee, and then the coffee acts as a resistor, and at different voltages, you have different molecules reacting with that applied voltage.

In the beer industry, they have IBU, which is somehow inferring how hoppy a beer is going to be, and they put a number on it.

And so there's nothing that prevents us from implementing something very similar based on this measurement on coffee bags.