Espresso shot runs too fast
The shot finishes well under the typical 25-30 second window and often tastes thin or sour.
Applies to: Espresso machine, Espresso
Likely causes and adjustments
Try one adjustment at a time so you know what actually changed the result. Start with the first cause below — if it doesn't help, reveal the next.
Cause 1 of 3 · Commonly the cause
Grind too coarse
Have you changed beans or grinder settings recently?
Grind finer to increase resistance and slow the flow.
Related issues
What to change
Specific adjustments for this symptom, with what each one trades off.
Work it out
Interactive tools that take you through this one change at a time.
Learn the technique
Step-by-step guides to the skills this problem comes from.