The Physics Of Filter Coffee Epub Updated ((new))

Where $k$ = permeability (depends on grind size), $A$ = bed area, $\Delta P$ = pressure difference, $\mu$ = water viscosity, $L$ = bed depth.

Compounds deeper inside the coffee particles move toward the surface where the concentration of solids in the surrounding water is lower. This is driven by a concentration gradient . the physics of filter coffee epub updated