Headspace and puck depth
How headspace and puck depth in the portafilter affect flow dynamics, extraction uniformity, and flavor in espresso.
How headspace and puck depth in the portafilter affect flow dynamics, extraction uniformity, and flavor in espresso.
How Melitta and traditional cone-shaped brewers function and how to optimize their use for balanced extraction.
How the physical properties of coffee filters affect water flow, extraction, and cup quality.