← All terms
Primed on-demand
An on-demand grinder that always holds a small amount of coffee in its grind path, dispensing whatever was ground previously and replacing it with a fresh batch.
Category: Grinders — Adjustment & Dosing
A grinder workflow where the burrs are "primed" before each dose — a small amount of coffee is run through the burrs first to ensure they're full when the actual dose starts. Reduces dose variation at the start of a shot.
Why it matters — Empty burrs grind differently from full burrs. Priming gets the burrs full and grinding consistently before the timed or weighed dose starts, producing more consistent doses shot-to-shot.
Good to know
- Built into some commercial grinders (Mythos series, Mahlkönig E80) as an automatic prime step.
- On home grinders, a manual prime (5 seconds of grinding) before each dose achieves the same effect.