Coffee Grinder Reviews

Before you buy

Burr shape changes the grind, not the quality

Conical burrs crush beans between a cone and a ring; flat burrs shear them between two parallel discs. Neither is better in the abstract — flat burrs tend to produce a narrower particle spread that suits espresso, conical burrs run cooler and quieter and are common on filter grinders. What matters more is whether the adjustment is stepped or stepless: espresso lives in a very narrow band, and a grinder with coarse steps can leave you unable to land between two shots. Our espresso grinder guide covers where that line falls.

Retention is the spec nobody lists

Every grinder keeps some coffee in the chute and burr chamber between uses. On a hopper-fed machine that stale retained dose mixes into the next one; on a single-dose grinder you weigh in what you want and get almost all of it back. If you change beans often, low retention matters more than burr size. If you drink the same roast every morning, it barely registers.

Match the grinder to the brew, not the budget

A grinder that is excellent for pour-over can be genuinely unusable for espresso, because espresso needs both a finer grind and finer control over it. Decide the brew method first. The grind size chart shows the range each method needs, and our grinder guide works through the hand-versus-electric decision.