Problem Cause
Grind Too Coarse
Coffee particles are too large, allowing water to pass through too quickly
How to Identify This Issue
- 1Shot runs very fast (under 20 seconds)
- 2Watery, thin espresso
- 3Sour taste
- 4Low extraction yield
- 5Visible gaps in coffee bed
Visual Cues
Ground texture and uniformity
Puck surface and distribution
Related Symptoms
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Solutions for Grind Too Coarse
Grind Finer
Adjust your grinder to produce finer coffee particles. Make small adjustments (2-3 increments on most grinders) and pull a test shot.
Expected Result
Extraction time should increase by 3-5 seconds. Flavor should become more balanced with less sourness.
Increase Coffee Dose
Add 0.5-1g more coffee to your portafilter basket. Ensure it's within your basket's recommended capacity.
Expected Result
More resistance, slower extraction, fuller body and more intense flavor.
Upgrade Your Grinder
If using a blade grinder or entry-level burr grinder, consider upgrading to a quality espresso grinder with fine adjustment capability.
Expected Result
More consistent particle size, better control, dramatic flavor improvement.