Section
Troubleshooting & FAQ
Most bad cups trace back to one of three things: grind size, ratio, or contact time. This section works backward from a taste problem to the adjustment most likely to fix it.
- 1 guide
- Last updated 06/03/2025
What this section covers
- The difference between a bitter cup and a sour cup, and why they call for opposite fixes.
- Why weak coffee is not always about using too little coffee.
- What a muddy or gritty cup usually means about the grind or the filter.
- A short list of the questions readers send in most often.
Guides in this section
Most recent first
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Why does my coffee taste bitter or sour? A troubleshooting guide
Bitterness and sourness point to opposite problems. A short diagnostic to work out which one you have and what to change first.