Runs on this device. Inputs are not uploaded or saved. Results rounded for display.
How to use it
- Measure the inputs in the units shown. Keep a note of your original recipe.
- Change the relevant input and calculate. Compare the answer with the worked example below.
- Use the output within the stated limits; reset to restore the example inputs.
Worked example
480 g water, 30 g coffee, 2 g/g retention and 10 g other loss estimates 410 g collected.
Assumptions and limits
Approximation: dissolved solids, filter retention and drainage vary. Weigh actual collected liquid when calculating TDS-based extraction.
Questions
What does this result establish?
Estimated collected beverage = water − coffee × retained water factor − other loss. It provides the stated arithmetic or random ordering; it is not a taste or equipment certification.
What measurements should I use?
Dry coffee (g); Input water (g); Retained water per gram coffee (g/g); Other liquid left behind (g). Keep the units consistent rather than copying a number from a differently labelled recipe.
Why is an input rejected?
Blank, non-finite, negative or out-of-domain measurements cannot produce a valid answer. Each field has a bounded range. Incompatible combinations show an explanation instead of retaining a previous result.
Can I use this without an account?
Yes. Once this page and its modules load, the calculation runs locally without accounts, external APIs or input storage. Reloading restores the defaults.
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