Zero point

The grind setting at which the burrs just touch each other — making contact with no coffee in between, producing a soft chirp. Used as the reference for all coarser settings.

Why it matters — Knowing your zero point is essential for burr alignment, calibrating grind adjustment after a burr swap, and troubleshooting grinder behaviour.

Good to know

• Always find zero with the grinder running, not stationary — running gives a clear chirp.
• Mark or note the zero position. After a burr change, the new zero may be in a different place; recalibrate before grinding.