Paper puck filters and channel control
How paper puck filters influence espresso extraction, reduce channeling, and affect clarity and mouthfeel.
Channeling risk
Basket geometry and flow
How basket geometry—diameter, depth, and hole pattern—affects espresso flow dynamics, extraction balance, and flavor outcomes.
Declining vs flat pressure profiles
The differences between declining and flat pressure profiles in espresso, and how they influence extraction dynamics and flavor outcomes.
Grind distribution modeling
How grind distribution modeling helps researchers and baristas understand particle size variation, fines content, and its impact on extraction and flow dynamics.
Fines migration and flow restriction
How fines migration—the movement of tiny coffee particles during extraction—affects flow restriction, channeling, and cup quality.
Puck compressibility and porosity
How the compressibility and porosity of an espresso puck influence flow resistance, extraction uniformity, and cup quality.