Coffee Extraction Yield and Dilution Calculator
Use measured beverage TDS and mass to calculate extraction yield and an optional water-only dilution.
YOUR CALCULATION
Result
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Calculation steps
Work through one step at a time or reveal the complete calculation. The steps use your current inputs.
How to calculate
Dissolved solids equal beverage mass times TDS mass fraction. Divide by the dry dose for extraction yield. For dilution conserve solids while adding water.
Extraction yield %=beverage mass × TDS % / dose; water addition=solids/target fraction−beverage mass
Worked example
18 g dry coffee, 270 g beverage and 1.3% measured TDS give 3.51 g dissolved solids and 19.5% extraction yield. Diluting to 1.2% requires 22.5 g water.
Assumptions and input details
Mass-based arithmetic; use a suitable measured coffee TDS value rather than an electrical-conductivity meter reading. No automatic measurement correction, sensory score or recommended extraction target. A higher TDS cannot be reached by adding water; calculated coffee solids cannot exceed the dry coffee dose. Brew-water ratio is independent of beverage yield.
References: Stat-Ease coffee study: measured TDS and extraction yield
Using this calculator
Can I enter my own problem?
Yes. Replace the example values with your own inputs. The result, calculation steps, tables and applicable diagrams update from those inputs. Blank or invalid values clear the result; example values are never silently substituted for missing inputs.
Are the results exact?
Results use floating-point arithmetic and displayed rounding. Read the formula, assumptions and any stated data precision before interpreting the result.
Is my input uploaded?
The calculation runs in your browser. No account, file upload or external AI service is required. Inputs are not saved between page reloads.
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