How to Use the 1Zpresso X-Ultra: A Step-by-Step Grinding Guide

My first grind with the 1Zpresso X-Ultra came out half dust, half boulders — and I hadn’t even touched the dial yet. Turns out I’d skipped zeroing the grinder, a step almost every new owner glosses over. Here’s how to use the 1Zpresso X-Ultra in three moves: zero it, set the grind, then crank. The same 60-click, 12.5-micron dial runs across the whole Ultra line, so K-Ultra and J-Ultra owners will feel at home fast. This guide walks through what’s in the box, zeroing, dial reading, grinding, brew settings, and cleaning.

What’s in the Box and How the X-Ultra Is Built

The X-Ultra ships with the grinder body, a 40mm heptagonal stainless steel conical burr, and a foldable crank handle. You also get a magnetic catch cup (25–30g capacity), a cleaning brush, a small air blower, an anti-slip rubber band, and a hard carrying case. The body combines stainless steel, aluminum alloy, wood, and polycarbonate accents.

The hopper sits on top and holds your whole-bean dose. The external adjustment ring wraps around the body just below it — that’s what you’ll turn to change grind size. The catch cup snaps on at the base with magnets, so it won’t twist loose mid-grind, and the handle folds flat against the body for storage, then swings out and locks when you’re ready to crank.

That external ring is the real point of this design. Older internal-adjustment grinders make you count clicks from memory every time you switch beans. The X-Ultra’s ring shows you exactly where you are and re-seats at zero in seconds, even after a full teardown.

For a full breakdown of specs, pricing, and where the X-Ultra sits against the K-Ultra and J-Ultra, see our 1Zpresso X-Ultra review.

How to Zero and Calibrate the X-Ultra Before First Use

Zeroing means turning the outer ring until the burrs just touch and the handle stops spinning freely. That point is your reference for every grind setting after this — get it wrong and every setting downstream drifts off.

Here’s the routine:

1. Remove the hopper lid and make sure the burr chamber is empty.
2. Turn the external ring counter-clockwise, toward fine, until you feel resistance and the handle won’t turn easily. That’s zero — not the tightest the dial will go.
3. Note the dial reading. It should read close to 0.0.0, though a few clicks of offset (roughly ±10) is normal depending on how the thumb nut was tightened at the factory.
4. From there, turn clockwise, toward coarse, to reach your target brew setting.

The reading system trips up a lot of new owners, so it’s worth slowing down here. 1Zpresso writes settings as Rotation.Number.Click (R.N.C). A setting like 1.3.2 means one full rotation past zero, then number 3 on the dial, then 2 more clicks. The dial runs 6 numbers and 60 clicks per rotation (10 clicks per number), across 4.5 rotations total, and each click shifts the burr by 0.0125mm (12.5 microns) — noticeably finer than the K-Ultra’s 20-micron step. That fine resolution is exactly why learning how to use the 1Zpresso X-Ultra well starts at this zero point, not at the brew-setting stage.

One warning worth repeating from 1Zpresso’s own manual: don’t force the ring past the zero point. The first few clicks past zero carry the highest risk of burr contact, and pushing through resistance there is how the burr assembly gets strained over time. A little resistance is normal; grinding metal-on-metal isn’t. If the handle won’t turn at all, back off a click and try again.

Mark your zero with a small dot of tape or a quick phone photo — it saves real time when you recalibrate after a cleaning.

How to Grind Coffee with the X-Ultra, Step-by-Step

Set your grind size on the dial, load beans into the hopper, unfold the handle, and crank clockwise until the beans are fully ground. That’s the whole process once your setting is dialed in.

1. Weigh your beans — the catch cup holds 25 to 30 grams, depending on the bean.
2. Set the dial to your target R.N.C reading.
3. Attach the magnetic catch cup at the base.
4. Unfold the crank handle and lock it into place.
5. Turn the handle clockwise at a steady pace until resistance drops off.
6. Twist the cup to release it, then pour your grounds.

Oily dark roasts add a bit more drag toward the coarse end than a light roast does, since more residue clings to the burr surface as you grind. If you’re running back-to-back doses, a quick brush-out between them keeps things smooth. Static is common too, especially on finer settings — a couple of light taps against the counter clears grounds clinging to the cup.

Best Grind Settings for Espresso, AeroPress, and Pour-Over

The X-Ultra covers a range of roughly 0 to 1,210 microns across its 4.5 rotations, and each brew method gets its own window on the dial — espresso the narrowest slice, filter methods the widest.

Brew method	Approx. window (R.N.C)	Approx. click span	Feel
Espresso	0.0.0 – 0.2.0	~20 clicks	Tight, extra-fine
AeroPress	0.2.0 – 1.0.0	~40 clicks	Fine to medium-fine, forgiving
Pour-over (V60, Chemex)	1.0.0 – 1.4.0	~40 clicks	Medium, forgiving
French press / cold brew	1.4.0 onward	Remaining range	Coarse

These windows are approximate, built from the dial’s known click math plus independent testing of the grinder rather than a single official 1Zpresso chart — 1Zpresso doesn’t publish one fixed per-method table for the X-Ultra, and exact starting points can shift slightly by burr batch and bean. Start in the middle of your method’s window and taste from there.

A simple troubleshooting rule works for any espresso setting: if the shot pulls in under 20 seconds, go one click finer; if it drags past 30 seconds, go one click coarser. That narrow ~20-click espresso window is tight next to the J-Ultra’s 8-micron steps, so if you pull shots daily, dialing in here takes a bit more patience — this is part of what makes knowing how to use the 1Zpresso X-Ultra well worth the extra ten minutes up front.

A real example from my own first week: my espresso shot ran fast and sour on my starting click. I moved three clicks finer and pulled again — the shot slowed down and the sourness dropped off within that one adjustment.

Cleaning, Maintenance, and Fixing Common Grinding Issues

Brush out the burr chamber after every session, and do a full teardown every one to two weeks if you grind daily — closer to every week with oilier dark roasts, since that residue builds up faster.

The teardown is tool-free: pop the dial ring, lift the burr, brush both faces, and clear the grooves with the air blower. Never rinse the burr with water — it damages the metal and works against the dry-clean design. Once it’s back together, re-zero the dial before your next grind, since removing the burr resets the zero point.

A light film of static in the catch cup is normal, especially on finer settings — a couple of knocks against the counter clears it.

For the full disassembly and deep-clean walkthrough, see our guide to cleaning the 1Zpresso X-Ultra.

A real example of this in practice: after a few weeks of daily grinding, mostly dark roast for AeroPress, I noticed grounds clinging faintly to the chute instead of dropping cleanly into the cup. A light film of oil had built up around the burr collar — nothing gritty, just enough to slow things down. A quick brush-and-blow session cleared it completely, and the dial held its zero point through the teardown, so no recalibration was needed.

FAQ

How much does the 1Zpresso X-Ultra cost?

1Zpresso sells the X-Ultra for $159 on its official store. That’s about $40 under the J-Ultra ($199) and roughly $100 under the K-Ultra ($259), and well under the Comandante C40, which runs from about $270 to $325 depending on finish. Prices shift, so check current listings before buying.

Is the X-Ultra good for both espresso and pour-over? 

It can do both, but the narrow ~20-click espresso window makes it better suited to filter brewing with occasional espresso use. If espresso is your main brew, the J-Ultra’s finer 8-micron steps give you more room to dial in.

How long do the burrs on the X-Ultra last? 

1Zpresso rates its burrs for roughly 100 to 200 kilograms of beans. For someone grinding a bag or two a week, that works out to several years before the burr needs replacing.

Are the X-Ultra’s parts food-safe? 

The burr set is stainless steel (420 and 304 grade, per 1Zpresso’s spec), and the body combines aluminum alloy, wood, polycarbonate, and stainless steel — no plastic in the parts that touch beans or grounds.

Can you buy replacement parts for the X-Ultra? 

Yes. 1Zpresso sells spare parts like handles, catch cups, and dial rings through its official store. The grinder carries a one-year limited warranty covering manufacturing defects, though it doesn’t cover rust or normal wear.

How do I store the X-Ultra when traveling? 

Fold the handle flat and pack the grinder in its included hard case. Note your current dial setting on your phone before you pack it up, so it’s easy to return to the same grind when you’re back home.