4:6 Coffee Brew Timer

4:6 Coffee Brew Timer guides you through Tetsu Kasuya's 4:6 pour-over method — a simple ratio-based technique for brewing consistently great coffee at home.

HOW IT WORKS
Set your coffee weight and brew ratio, then dial in your taste:
• Balance — Acidity, Basic, or Sweet
• Strength — Weak, Basic, or Strong

The app calculates a personalized pour schedule (4 to 6 pours) based on your choices, then walks you through each pour with a step-by-step countdown timer.

FEATURES
• Automatic pour schedule generated from your weight, ratio, and taste settings
• Step-by-step countdown timer with notification controls
• Brew history saved automatically and charted over time
• Light and dark theme support
• No ads, no accounts, no sign-in required

PRIVACY FIRST
All brew data stays on your device. Nothing is uploaded, tracked, or shared with third parties.

Whether you're new to pour-over or refining your technique, 4:6 Coffee Brew Timer takes the guesswork out of Kasuya's method so you can focus on the coffee.