Grinder Calibration
Sets the daily and per-bag calibration routine that keeps espresso grind size and dose dialed to the correct extraction window.
Why This Matters
Grind size drifts with humidity, bean age, and burr wear, and an uncalibrated grinder makes every other brewing step irrelevant. A dialed-in grinder is the difference between a shop known for consistent espresso and one guests avoid after a bad cup. Calibration is a two-minute habit that protects the whole bar's reputation.
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