What You Need to Know
Utilizes gravitational potential energy and controlled pore-size diffusion to selectively extract caffeine (1,3,7-trimethylxanthine) and chlorogenic acids while minimizing tannin dissolution. Glass towers provide thermal stability and visual feedback.
Produces a clean, nuanced coffee concentrate with 67% less acidity than hot brewing, ideal for cocktails or undiluted sipping.
Key Parameters
Temperature
10°C
5°C - 15°C
Time
8 hours
4 hours - 12 hours
Equipment
Tower-style glass dripperNeedle valve regulatorLaboratory-grade filtersCarafe with argon flush
Steps
- 1.
Kyoto-style Affogato (Tokyo specialty cafes): Provides clarity against dairy fat
The Science
Primary Reaction
Non-equilibrium solid-liquid extraction