Coffee Extraction Yield Calculator
Coffee extraction yield estimates the mass of dissolved coffee solids recovered into the beverage relative to dry coffee dose. It uses a measured TDS percentage as an input.
How to use this calculator
- Enter dry dose, beverage mass and measured TDS percentage.
- Check that all inputs use the same units, period and population scope.
- Change one assumption at a time when comparing scenarios.
Formula used by coffee extraction yield calculator calculator
Extraction yield % = beverage mass × TDS fraction ÷ dry coffee dose × 100%.
- Extraction yield % = beverage mass × TDS fraction ÷ dry coffee dose × 100%.
- Use a calibrated refractometer and method suitable for the beverage. The calculation is only as reliable as the TDS and mass measurements.
- The tool validates inputs and rounds displayed figures for readability; it does not validate assumptions against external records.
Worked examples
Worked example
A 18 g dose yields 270 g beverage at measured TDS of 1.35%.
270 × 0.0135 ÷ 18 × 100 ≈ 20.25%.
Estimated extraction yield is about 20.25%.
Understanding the result
Coffee extraction yield estimates the mass of dissolved coffee solids recovered into the beverage relative to dry coffee dose. It uses a measured TDS percentage as an input.
Use a calibrated refractometer and method suitable for the beverage. The calculation is only as reliable as the TDS and mass measurements.
Important notes
Use a calibrated refractometer and method suitable for the beverage. The calculation is only as reliable as the TDS and mass measurements.
Treat the result as an estimate from the entered assumptions. For commercial, statistical, engineering or health-related decisions, verify relevant specifications and professional guidance.
Frequently asked questions
Is TDS the same as extraction yield?
No. TDS is concentration in the beverage; extraction yield also uses beverage mass and coffee dose.
Does a certain yield guarantee good taste?
No. Sensory preference, roast, grind, water and brew method also matter.
How should I interpret this result?
Use a calibrated refractometer and method suitable for the beverage. The calculation is only as reliable as the TDS and mass measurements.
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Related explanations
Learn the method behind the number or compare the terminology before using the calculator.
- How to Calculate Percentage Change — Learn the percentage change formula, how to calculate increases and decreases, and why the original value matters.
- Percentage Change vs Percentage Difference — Understand the difference between percentage change and percentage difference, including when each formula is appropriate.
- Percent Difference — Understand percent difference, when it is appropriate, and how it differs from percentage change and percent error.
This page provides a calculation tool plus explanatory information so you can understand what the result means and when the underlying method may not fit your situation.