Guides

Brewing guides

Short answers to the questions every home brewer runs into, with the studies and tests behind them.

• Pour-over coffee ratio: where to start and how to adjust itStart at 1:16, then change it in steps you can actually taste. What the ratio does to a pour-over, with a dose table and the numbers behind it.
• Why does my coffee taste sour or bitter?How to tell sour from bitter from dry, and what to change for each in pour-over and espresso, based on tasting studies and blind tests.
• How long should coffee beans rest after roasting?Days, weeks or months? What research knows about resting and storing coffee beans, what nobody has measured yet, and how to find your own answer.