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Coffee Tools

Tools for a Better Cup

A ratio calculator, a recipe library, and a brew compass for when the cup isn't right. Free to use, no account needed.
  1. The Perfect Brew Calculator with method selector, dose and water fields, and a brew timer.

    Perfect Brew Calculator

    Set your method and cup size, then get dose, water volume, and brew timing. A timer tracks each pour step.

    11 brew methods · Live brew timer · Shareable recipes

    Open the calculator
  2. The Expert Recipes library, showing championship brew recipes with filters by method and expert.

    Expert Recipes

    Competition recipes from championship brewers. Each entry lists pour steps, grind setting, ratio, and short notes on why it works.

    Championship recipes · Step-by-step pours · Filter by method & expert

    Browse the recipes
  3. The Coffee Compass diagnosis wheel, mapping tasting symptoms to method-specific brewing fixes.

    Coffee Compass

    When a cup tastes off, pick the symptom (sour, bitter, thin) and get a fix for your brew method. Based on extraction, not guesswork.

    Symptom-to-fix diagnosis · Method-specific corrections · Rule-based, no AI

    Diagnose a brew
  4. The Grind Size Converter, showing brew methods mapped to grinder settings on a micron-scale chart.

    Grind Size Converter

    Pick your brew method and grinder to get the exact clicks or numbers to dial in. A full grind-size chart maps every method on a micron scale.

    Brew method → grinder setting · Timemore, 1Zpresso, Baratza, Hario · Micron-scale chart

    Convert a grind

More tools are planned: a flavor wheel and a map of specialty roasters in India. Missing something?