Coffee Compass
Brew Diagnosis Tool

Coffee Compass

Tell us what you taste. We'll tell you what went wrong and exactly how to fix it.
Deterministic Engine
No AI / No API
Method-Aware

Diagnose Your Brew

Select your symptoms and brewing method to pinpoint exactly what needs to change.

Brewing Method

Roaster (optional)

Coffee (optional)

What do you taste?

Acidity / Under-Extracted

Bitterness / Over-Extracted

Strength

Diagnostic

Your fix appears here

Pick what you taste above — sour, bitter, thin, and the rest. The Compass maps your symptoms to a precise, method-specific correction. No AI, just extraction physics.

SourUnder ExtractedUE / SStrongOE / SOver ExtractedOE / WWeakUE / WSourVegetalSaltyIntenseMuddyHeavyToo StrongAstringentHarshBitterSmokyWateryWeakThinHollowSharpAcidicFlatThin SourTea-likeDryChalkyDullLifelessSour & BitterCleanVibrantFullSmoothBalanced

Tap a segment on the wheel to diagnose

Inspired by the Coffee Compass by Barista Hustle

How It Works

Pure coffee physics — no AI, no guesswork. The same model Barista Hustle uses to build their compass.

Pick Your Symptoms

Select what you taste — sour, bitter, watery, heavy. Choose as many as apply.

Choose Your Method

Pour-over, espresso, AeroPress, French press — the engine tailors advice to your gear.

Get Precise Fixes

Instantly see your extraction position and method-specific corrective actions. No guessing.