Grinding
How to Dial In a New Grinder for Espresso
Dialing in a new grinder feels intimidating the first time and becomes routine with a consistent process — the key is changing one variable at a time and reading the result correctly.
Start in the middle of the range
Begin near the middle of your grinder's espresso range rather than guessing at an extreme, then adjust from there based on how the shot actually runs. Starting at an extreme wastes time in a part of the range you likely won't end up using.
Read shot time first
If your shot runs much faster than your target time, grind finer. If it runs much slower or chokes to a stop, grind coarser. Adjust in small steps and re-taste rather than making large jumps — a single click or a fraction of a turn is often enough to notice a real difference.
Change one thing at a time
Adjust grind size alone before also changing dose or tamp pressure — changing multiple variables at once makes it impossible to know which change caused which result, and it is the single most common reason people describe dialing in as "trial and error with no pattern."
Common mistakes when dialing in
The most common mistake is chasing taste directly instead of reading shot time and yield first — taste is the last check, not the first diagnostic tool, because it is far more subjective and slower to calibrate than a stopwatch and a scale. The second is over-correcting: moving several steps at once after one bad shot, which often overshoots past the actual correct setting.
When to stop adjusting
Once a shot reliably reaches your target yield within your target time window and tastes reasonably balanced (not obviously sour or bitter), stop adjusting grind and start adjusting to taste in smaller increments, or leave it — chasing a "perfect" shot past this point has fast diminishing returns relative to the time spent.