Espresso Ratio & Dial-In Assistant

La Dolce Vita · Home Barista

Espresso Ratio & Dial-In Assistant

Enter your dose, yield and shot time. Get a clear verdict and one precise adjustment — so you can stop guessing and start tasting.

Taste leads

Reference · when is a shot right?

Read your puck — the honest feedback

After the shot, knock out the puck and press it with a finger. It's one of the clearest signals that your dose is right.

Soft & muddy (feels like wet mud) → dose too low for the basket. Add coffee or use a smaller basket.
Rock hard (like a rubber shoe sole) → dose too high. The puck is jammed against the screen. Take some out.
Firm but springy (like fresh rye bread) → dose is spot on. This is your target.

Wet, sloppy, or cratered pucks with a hole in the middle usually mean channelling — water punched through one spot instead of the whole bed. Fix it with better distribution and a level tamp, not with the grinder.

The dial-in workflow — place, feel, tamp, feel, spin
1 · Place2 · Feel3 · Tamp4 · Feel5 · Spin

Change one variable at a time. The grinder is your main lever. Keep your dose and your target ratio fixed, adjust the grind by one small step, and pull again.

Grind: finer = more resistance = slower flow = more extraction. Coarser = less resistance = faster flow = less extraction.

Distribution & tamp: break up clumps (WDT), level the bed, then tamp flat and firm. Uneven prep is the number-one cause of a shot that tastes wrong despite good numbers.

Ratio & time cheat-sheet
StyleRatio (out : in)Character
Ristretto1 : 1 – 1 : 1.5Short, syrupy, intense, low acidity
Normale1 : 2 (≈1:1.8–2.2)The classic reference espresso — start here
Lungo1 : 2.5 – 1 : 3+Longer, lighter body, more extracted

Target shot time for a 1:2 is roughly 25–32 seconds from the moment the pump starts. Longer ratios take a little longer; shorter ratios a little less.

Volume note: dark-roasted and coarsely ground coffee takes up more volume in the basket (fills up fast at low weight). Light-roasted and finely ground takes up less (needs more weight to fill). Adjust your expectations of "how full" the basket looks by roast.

Water temperature — set it for the roast

Espresso brews well at roughly 88–96 °C, with ~93 °C a good all-round starting point. Temperature is a secondary lever: set it for your roast, then dial in with grind.

RoastAim forWhy
Light93–96 °CDense & hard to extract — needs the heat, or it turns sour
Medium92–95 °CForgiving middle ground
Medium–dark90–93 °CExtracts more easily — ease off the heat
Dark88–92 °CVery soluble — too hot brings out bitterness & ash

Fine-tuning: hotter = more extraction (more sweetness/body, but bitterness if overdone); cooler = less extraction (more brightness, but sourness if overdone). Move in 1 °C steps.

No temperature control on your machine? Leave this blank and dial with grind and ratio — they do most of the work.

Taste guide — the final judge

Sour / sharp / salty Under-extracted — you haven't pulled enough out of the grounds. Grind finer (or run a slightly longer ratio).

Sweet / balanced Extraction is where you want it. Lock in these settings.

Bitter / harsh / drying Over-extracted — you've pulled too much. Grind coarser (or run a slightly shorter ratio).

If the taste and the clock disagree — e.g. sour and slow — suspect channelling, and fix your puck prep first.

Guidance is a starting point — your palate is the final authority. Adjust one variable at a time and re-taste.
Made for La Dolce Vita home baristas · ladolcevitalifestyle.com