Basket geometry and flow
How basket geometry—diameter, depth, and hole pattern—affects espresso flow dynamics, extraction balance, and flavor outcomes.
Uniform extraction
Immersion cold brew variables
The key variables that affect immersion cold brew—grind, ratio, time, and temperature—and how they influence flavor and strength.
Basket design and hole patterns
How espresso basket design and hole patterns affect puck resistance, flow, and flavor consistency.
Advanced agitation techniques
How different agitation methods influence extraction uniformity, clarity, and body in filter brewing.
Agitation, turbulence, and channeling
How movement of water through coffee grounds affects extraction uniformity, flavor, and potential defects.
Particle measurement basics
How to measure and understand grind particle size, distribution, and its impact on extraction.