Grinding · review
A 48 mm (1.89 in) burr set with external adjustment and 240 clicks, at a price where the competition offers 38 mm (1.50 in) and internal dials. The finish is plainer than a Comandante; the grind is not far behind it.
Where we land on it The value pick in hand grinders, and it is not close.
Hand grinders have compressed enormously in price over five years, and the K6 is where that compression currently lands: 48 mm (1.89 in) burrs and 240 clicks of external adjustment for about ninety dollars.
Both numbers matter. Larger burrs cut more coffee per revolution, so an eighteen-gram espresso dose takes noticeably fewer turns than on a 38 mm (1.50 in) grinder — a real difference when you are standing there doing it. And 240 clicks across the range means espresso is properly dialable rather than approximated, which is where cheaper hand grinders fall down.
What you give up against a Comandante is refinement rather than capability. The crank is not as smooth under load, the tolerances are looser, the finish is plain, and the external dial is easy to nudge while it lives in a drawer. None of that changes the grind much.
The honest comparison is against an electric grinder at the same money, and the answer is the usual one: the K6 grinds better and the electric grinder does it while you do something else. One or two cups a day, buy this. Four cups before work, buy the motor.
| Burr type | 48 mm (1.89 in) stainless steel |
|---|---|
| Adjustment | External, 240 clicks |
| Capacity | ≈ 30 g (1.1 oz) |
| Range | Espresso and filter |
| Retention | Very low |
Larger burrs cut more coffee per turn, so a dose takes fewer revolutions and less time — a 48 mm (1.89 in) set is meaningfully faster than a 38 mm (1.50 in) one. It also tends to produce a slightly narrower particle distribution, though the geometry matters more than the diameter alone.
External is faster to change and easy to knock; internal is fiddlier and stays put. If you switch between espresso and filter regularly, external saves real time. If the grinder lives in a bag, internal is safer.
8.3/ 10
The value pick in hand grinders, and it is not close.
A reference exists on these Amazon stores: France, Germany, Italy, Spain, United Kingdom, United States. Listed is not the same as in stock — availability changes daily.
Details checked on October 30, 2026.
Espresso at home from a hand grinder, without paying Comandante money.
Amazon reports what buyers took in the month before this page was last checked: at least 1,000.
The figure is a floor, rounded by Amazon, and read through Keepa — it says what buyers picked, not what a maker claims.
Specifications: the manufacturer sheet for coffee equipment and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.
40 mm (1.57 in) conical · 40 settings: 1–20 espresso, 21–40 filter
The cheapest electric grinder that genuinely does espresso and filter without being bad at both. Twenty fine steps reserved for espresso are the whole point — and Baratza will still sell you a burr set for it in ten years.
Best for: Anyone pairing a grinder with a Gaggia Classic, a Dedica upgrade, or a Barista Express they have outgrown.
39 mm (1.54 in) nitrogen-hardened burr · hand · filter & espresso
The hand grinder others are measured against, and priced accordingly. Grinds better than electric grinders at twice the money, and asks for your arm every single morning.
Best for: One or two exceptional cups a day, travel, and anyone who values the object.
55 mm (2.17 in) flat burr · stepless · near-zero retention
Stepless adjustment, 55 mm (2.17 in) flat burrs and almost nothing left in the chute — the three things that separate a serious espresso grinder from a good one. It is quiet enough to use at six in the morning without an argument.
Best for: A Gaggia Classic, Lelit or Rancilio owner who has stopped blaming their technique.
