Dose precision and variance control
Why dose precision is critical in brewing, how small errors affect strength and extraction, and strategies for controlling variance in recipes.
Impact extraction
Pressure and flow profiling curves
How pressure and flow profiling curves influence espresso extraction, and how baristas and researchers use them to optimize flavor and consistency.
Headspace and puck depth
How headspace and puck depth in the portafilter affect flow dynamics, extraction uniformity, and flavor in espresso.
Darcy-style intuition for flow in beds
How to conceptualize water flow through coffee grounds using principles inspired by Darcy’s Law, connecting pressure, resistance, and flow rate.
Alignment and parallelism
How precise alignment and parallel positioning of burrs affects grind consistency and extraction performance.