Quality takes time. One bean at a time.
Tell us what you taste. We'll tell you what went wrong and exactly how to fix it.
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
←→or scroll to rotate
Tap a segment to diagnose
Inspired by the Coffee Compass by Barista Hustle
Pure coffee physics — no AI, no guesswork. The same model Barista Hustle uses to build their compass.
Select what you taste — sour, bitter, watery, heavy. Choose as many as apply.
Pour-over, espresso, AeroPress, French press — the engine tailors advice to your gear.
Instantly see your extraction position and method-specific corrective actions. No guessing.
