Espresso
Dial-in
Dial-in is the process of adjusting an espresso grinder until shots hit your target dose, yield, and time — typically 18g in, 36g out, in 25–32 seconds. Beans behave differently each day depending on humidity, age, and batch variance, so dial-in is a daily routine, not a one-time setup.
Dial-in is the daily ritual specialty cafés use to compensate for the variables that make espresso unpredictable: bean age (fresher = faster extraction), humidity (high humidity = slower flow), and batch-to-batch variance (no two roasts are identical). A grinder setting that produced perfect shots yesterday rarely produces perfect shots today.
The routine is fast once you know the process: pull a shot at yesterday's grind setting, check dose / yield / time against your recipe, taste the shot, then adjust grind finer (slower extraction, more body) or coarser (faster extraction, brighter) and pull a second confirmation shot. Most experienced baristas dial in a new bag in 3–5 shots; new hires take longer.
Dial-in matters because the first 10–20 drinks of every shift are 'guess shots' without it. A café that skips dial-in delivers visibly inconsistent quality — and trains regulars to expect inconsistency. A café that dials in daily delivers the consistency that builds loyalty.
In practice
- • Morning dial-in: pull two shots before doors open, record dose/yield/time on the shift log
- • Mid-shift re-dial: any time a shot tastes off, pull two more, adjust grind 1/4 number if needed
- • Bean change re-dial: every new bag, full re-dial — even from the same roaster
Related terms
Keep exploring
Drinks
Espresso
Espresso is a small, concentrated coffee beverage made by forcing about 92–94°C water through finely-ground, tamped coffee at 9 bars of pressure for 25–32 seconds.
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Espresso
Dose (coffee)
Dose is the weight of ground coffee used in a single espresso shot, measured in grams.
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Espresso
Yield (espresso)
Yield is the weight of espresso liquid produced from a shot, measured in grams.
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Espresso
Extraction
Extraction is the process of water dissolving soluble compounds from ground coffee during brewing.
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Equipment
Burr grinder
A burr grinder uses two rotating burrs (either flat plates or conical cones) to grind coffee beans to a consistent, adjustable size.
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FAQ
Frequently asked questions
How long does it take to dial in espresso?
Should I dial in by time or by taste?
How small should grinder adjustments be?
Why do I need to re-dial every day?
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