Advanced puck prep sequences
How baristas use advanced puck preparation sequences to optimize flow, reduce channeling, and maximize extraction consistency in espresso.
Espresso extraction
Preinfusion timing and pressure
How preinfusion timing and pressure influence espresso extraction, flow dynamics, and final cup quality.
Fines migration and flow restriction
How fines migration—the movement of tiny coffee particles during extraction—affects flow restriction, channeling, and cup quality.
Headspace and puck depth
How headspace and puck depth in the portafilter affect flow dynamics, extraction uniformity, and flavor in espresso.
Calculating EY and TDS accurately
How to correctly calculate extraction yield (EY) and beverage strength (TDS) for precise quality control in coffee brewing.