Espresso Dose-to-Yield Brew Ratio (1:2) & Extraction Flow Rate Calculator

Dial in espresso dose (g), liquid yield (g), and 25–30s shot flow rate.

Target Liquid Espresso Yield
36 g
Average Extraction Flow Rate 1.29 g/s
Expected TotalSolids at ~20% EY 3.6 g solids
Estimated Espresso TDS Strength 10 % TDS
Inputs
g
Dry ground coffee weight in portafilter basket (grams).
: 1
Yield-to-dose multiplier (1.5 ristretto, 2.0 standard 1:2, 2.5 lungo).
s
Total shot pull duration from pump start in seconds.
Results & Graph
Target Liquid Espresso Yield
36 g
Average Extraction Flow Rate
1.29 g/s
Expected TotalSolids at ~20% EY
3.6 g solids
Estimated Espresso TDS Strength
10 % TDS

Target Liquid Espresso Yield

Graph 1 • Dry Basket Dose Grams Sensitivity Recalculates the domain equation across 50% to 150% of the primary input while holding other parameters constant.
0 g 29.2 g 58.3 g 50%: 18 g 18 50% 75%: 27 g 27 75% 100%: 36 g 36 100% 125%: 45 g 45 125% 150%: 54 g 54 150%
Graph 2 • Primary & Supporting Metric Comparison Compares the primary output alongside supporting domain benchmarks.
Target Liquid Espresso Yield 36 g Average Extraction Flow Rate 1.29 g/s Expected TotalSolids at ~20% EY 3.6 g solids Estimated Espresso TDS Strength 10 % TDS
Graph 3 • Exact Output Table & Units Displays each calculated output in its exact domain unit.
Target Liquid Espresso Yield36 gAverage Extraction Flow Rate1.29 g/sExpected TotalSolids at ~20% EY3.6 g solidsEstimated Espresso TDS Strength10 % TDS
Summary: Pulling an 18g dose at a 1:2 ratio targets 36g of liquid espresso in the cup (1.29 g/s average flow over 28s).
Summary: Pulling an 18g dose at a 1:2 ratio targets 36g of liquid espresso in the cup (1.29 g/s average flow over 28s).
⚡ Send result to: Board Foot & Framing →Concrete & Sq Ft →Recipe & Cooking →
Interactive chart & math engine powered by CalculatorGraph

Formula & Mathematical Methodology: Espresso Ratio & Flow Formula

TargetYieldg = DryDoseg × BrewRatio
FlowRateg/s = TargetYieldg / ShotTimesec
TargetYield_g = DryDose_g × BrewRatio; FlowRate_g/s = TargetYield_g / ShotTime_sec
  • dryBasketDoseGrams: Dry Basket Dose Grams (g)
  • targetBrewRatio: Target Brew Ratio (: 1)
  • shotExtractionSeconds: Shot Extraction Seconds (s)

Rounding: Physical package counts round up where appropriate; continuous measurements round to 2 decimal places.

Worked Example: Practical Benchmark: Espresso Ratio & Flow

Dial in espresso dose (g), liquid yield (g), and 25–30s shot flow rate.

  1. Enter your project dimensions, machining speeds, or recipe weights.
  2. Compute the governing equation: TargetYield_g = DryDose_g × BrewRatio; FlowRate_g/s = TargetYield_g / ShotTime_sec.
  3. Review the primary result, supporting dimensions, and 3 SVG visualizations.
Result: Computes Espresso Ratio & Flow via TargetYield_g = DryDose_g × BrewRatio; FlowRate_g/s = TargetYield_g / ShotTime_sec.

Frequently Asked Questions

How does the Espresso Dose-to-Yield Brew Ratio (1:2) & Extraction Flow Rate Calculator calculate results?

It evaluates TargetYield_g = DryDose_g × BrewRatio; FlowRate_g/s = TargetYield_g / ShotTime_sec directly in your browser and plots three custom SVG visualizations.

Can I compare different material dimensions or batch sizes side by side?

Yes. Click "Compare (0/3)" in the results toolbar to pin up to 3 scenarios side by side.

Can I print a clean shop or kitchen reference sheet?

Yes. Click the Print button in the results toolbar for a distraction-free worksheet.

Everyday Life · Kitchen & Culinary

Espresso Dose-to-Yield Brew Ratio (1:2) & Extraction Flow Rate Calculator: inputs, method, and how to read the result

Dial in espresso dose (g), liquid yield (g), and 25–30s shot flow rate.

Choose inputs for the case you are checking

The defaults are illustrative. Replace them with values for your case and keep the units shown beside each field.

  • Dry Basket Dose Grams: Dry ground coffee weight in portafilter basket (grams).
  • Target Brew Ratio: Yield-to-dose multiplier (1.5 ristretto, 2.0 standard 1:2, 2.5 lungo).
  • Shot Extraction Seconds: Total shot pull duration from pump start in seconds.

What the calculation includes

With the default values shown, Target Liquid Espresso Yield is 36 g. The calculation follows Espresso Ratio & Flow Formula; the formula and variable definitions above show how the inputs combine.

One-input check: With the other defaults held constant, changing Dry Basket Dose Grams from 18 g to 20 g changes Target Liquid Espresso Yield from 36 g to 40 g. This is a comparison inside the calculator's stated model, not a prediction.

Where to use caution

  • Uses standard North American & metric trade dimensions, Machinery’s Handbook formulas, and culinary weight ratios.
  • Verify local municipal building codes, tool manufacturer limits, and food-safety time/temperature tables before execution.

Scope: Trade, Shop & Culinary Science Reference Standard Check the assumptions and limitations against your situation before relying on the estimate.

More in Everyday Life: Board Foot, Lumber Weight, Wall Stud Framing & Board-and-Batten Calculator, Concrete & Square Footage Calculator, Cooking Conversions & Recipe Scaling Calculator.