Robusta’s Speed Secret: Why Dark Roasts Need a Finer Grind
Robusta’s caffeine and chlorogenic acid dissolve faster, demanding a finer grind even in dark roasts. A 25–30s extraction felt aggressive, proving bean chemistry overrides roast level.
Matching a PID Machine with a Budget Grinder: What Works?
A $250 grinder can bridge the gap between a PID machine and perfect extraction. The real issue isn’t the machine’s limits—it’s whether your grinder can meet the ECM’s exacting standards.