What a stable extraction target looks like on a busy brew bar
Practical signals that tell a team the recipe is holding steady before flavor complaints start to surface.
Read →Coffee & Barista Standards
Brew ratios that hold up during service.
BeanMetric helps baristas convert dose, beverage target, extraction strength, and batch planning into practical numbers. The calculator is built for training rooms, brew bars, and café handoff sheets where consistency matters more than guesswork.
4,217 logged brew calculations
Used by roastery trainers in 18 cities
No signup required
Shift snapshot
Live-looking brew panel
Example profile for a washed Colombian lot dialed for balanced sweetness and controlled contact time.
Brew ratio1:16.7
Target beverage300 g
Recommended coffee dose18.0 g
Expected TDS window1.33–1.38%
Note: when humidity rises after lunch service, keep dose stable first and tighten grind by a half-step before changing water mass.
Tool 1
Brew ratio calculator
Set a target beverage weight, choose a ratio, and estimate beverage strength with a practical extraction assumption.
Water target—
Beverage yield—
Estimated TDS—
Coffee needed for service—
Method
How teams use BeanMetric
The site is designed to support repeatable dial-in rather than one-off recipe guesses.
1
Lock the target
Enter the dose and beverage style you want before the first brew. This keeps staff aligned across open, peak, and close shifts.
2
Read the extraction window
Use the estimated strength as a reference point for refractometer checks, training sheets, and recipe handovers between stations.
3
Scale for service
Convert a single cup recipe into prep volume for a queue of guests without rewriting your worksheet each time.
Journal
Recent field notes
Why café workflow breaks first when espresso yield moves
A closer look at puck prep, queue pressure, and how small yield drift spreads through an entire shift.
Read →
Water chemistry, grinder drift, and the numbers worth tracking daily
A concise checklist for keeping brewed coffee predictable across changing lots, humidity, and service pace.
Read →Proof
Used by disciplined coffee teams
Specific feedback from operators who needed tighter recipe control rather than generic brew advice.
⭐ 4.7/5 from 312 users
“We moved our filter training from loose note cards to a single reference. New hires reached target beverage weight two shifts faster.”
Elena Brooks · Training Lead, Alder Lane Coffee93% weekly reuse
“BeanMetric gave our bar leads a shared language for dose, ratio, and yield. That cut down handoff errors during weekend peak.”
Marcus Penn · Operations Manager, Drift Roast183 café worksheets exported
“The calculator is plain enough for service, but exact enough for calibration. That balance is rare.”
Rina Talbot · Roastery Educator, North CircuitFAQ
Questions from baristas and trainers
Does the calculator replace cupping?
No. It sets a technical baseline. Flavor decisions still need sensory review.
Can I use this for immersion brews?
Yes. Start with your intended beverage yield, then adjust for retention based on your brewer and filter paper.
Why estimate TDS here?
The estimate helps staff understand where a brew likely sits before a refractometer reading is taken.
What ratio is best for washed coffees?
Many teams begin between 1:15.5 and 1:16.7, then change grind first if sweetness and clarity are not aligned.
How should service prep be calculated?
Multiply the single-cup dose by the number of planned cups, then add a small waste buffer only if your station requires it.
Is it useful during training?
Yes. It turns abstract brewing language into measurable numbers that newer staff can repeat with confidence.