Free Tool
The Brew Assistant
Six brew methods, exact water math, second-by-second pour schedules — and a log that remembers every cup. Save your brews, export them, taste your progress.
Ratio Quick Reference
| Ratio | Profile | Best For | 20g coffee → |
|---|---|---|---|
| 1:12–1:14 | Bold, heavy body | Milk drinks, dark roasts | 240–280g water |
| 1:15–1:16 | Rich but balanced | Everyday medium roasts | 300–320g water |
| 1:16.5–1:17 | The specialty sweet spot | Light roasts, washed Africans | 330–340g water |
| 1:18–1:20 | Tea-like, high clarity | Delicate Geshas, cupping-style | 360–400g water |
Your Brew Log
Stored locally in your browser. Nothing leaves your device.
No brews logged yet
Run the calculator above and hit "Save to Brew Log" after your next brew.
| Date | Method | Coffee | Ratio | Water | Temp | Grind | Time |
|---|
This calculator is chapter one.
The full dial-in system — flowcharts, taste troubleshooting, and 51 timed recipes — lives in the e-books.
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