A concise framework for reading grind, ratio, water and time together.
Grind\n\nA finer grind increases exposed surface area and tends to extract more in the same time. Make changes in small steps.\n\n## Ratio\n\nThe coffee-to-water ratio is the main axis of beverage strength. Writing down your starting recipe makes comparison easier.\n\n## Water\n\nMineral balance matters as much as temperature. Clean water you enjoy drinking is a useful place to begin at home.\n\n## Time\n\nTime is not a target on its own; it is a result of flow and grind. Change one variable per test so you can hear what the cup is telling you.