JX Manual Coffee Grinder: 1Zpresso's Best Value Hand Grinder

The 1Zpresso JX is a manual hand grinder with 48mm stainless steel burrs that grinds beautifully for pour-over, drip, AeroPress, and French press. At around $120, it delivers grind quality that rivals electric grinders costing twice as much. If you don't need ultra-fine espresso grinding and want a hand grinder that handles filter coffee with precision, the JX is one of the smartest buys in the grinder market.

I picked up the JX after reading about it on coffee forums for months. The consensus was clear: for filter coffee grinding, this was the hand grinder to beat at any price under $200. After months of daily use, I agree with that assessment. Let me explain why.

JX vs. JX-Pro: Which One Do You Need?

This is the first question everyone asks, and the answer is simpler than you might think.

The JX and JX-Pro share the same body, the same 48mm burrs, and the same build quality. The only difference is the adjustment system. The JX-Pro has an external adjustment dial with finer steps, designed to give espresso drinkers the micro-adjustment they need to dial in shots precisely.

The standard JX has a coarser click system. Each click changes the burr gap by more microns than the Pro version. For filter coffee, this doesn't matter. The adjustment steps on the JX are perfectly fine-grained for pour-over, AeroPress, drip, and French press. You can hit your target grind size without any trouble.

Where the JX falls short is espresso. The steps between settings at the fine end are too large to dial in a shot with precision. If you pull espresso even occasionally, spend the extra $40 on the JX-Pro. If you only brew filter coffee, save that money and buy better beans instead.

Grind Quality for Filter Coffee

The 48mm burrs in the JX produce remarkably consistent particles at medium grind sizes. When I compare the grounds to what my Baratza Encore produces, the JX looks noticeably more uniform under a magnifying glass. In the cup, that translates to cleaner flavors and less bitterness.

Pour-Over Results

I use the JX daily for V60 brewing. At about 3.0-3.4 rotations from fully closed (depending on the bean), I get a 3:00-3:30 brew time with excellent clarity. Light roast Ethiopians taste fruity and tea-like. Medium roast Colombians come through with chocolate and caramel notes cleanly separated.

The consistency means I can repeat the same recipe day after day and get nearly identical results. With my old JavaPresse grinder, every cup was a little different because the particle sizes varied so much.

AeroPress and Drip

AeroPress is incredibly forgiving of grind variation, so the JX is almost overkill for it. But the precision makes recipes repeatable, which matters if you follow competition-style AeroPress recipes with specific grind sizes and brew times.

For automatic drip machines, the JX at 3.5-4.0 rotations produces a clean, balanced pot. Nothing revolutionary about drip coffee, but the quality of the grounds means you're extracting more evenly across the whole brew basket.

French Press and Cold Brew

At the coarsest settings (4.5+ rotations), the JX produces chunky, uniform particles with minimal fines. My French press cups are noticeably cleaner than what I got with cheaper grinders. Less silt, more clarity, better flavor.

Cold brew at 5.0 rotations for 20 hours gives a smooth, sweet concentrate that dilutes beautifully.

Build Quality

The JX is built like a serious tool, not a gadget. The body is aluminum alloy with a steel inner frame. It weighs about 620 grams and feels dense and solid in your hand.

The Handle

The folding handle is steel with a wooden knob at the end. It's comfortable for extended grinding sessions and stores flat against the body when not in use. The handle locks into the top of the grinder shaft via a magnet and pin system.

I've ground 20+ grams at a time without my hand cramping. The bearing system is smooth enough that grinding doesn't feel like a chore. Medium grind sizes for pour-over take about 30-40 seconds for 15 grams. Coarse grinds are even faster.

Durability

After months of daily use, my JX shows no wear beyond minor cosmetic scratches on the body. The burrs remain sharp, the adjustment mechanism still clicks precisely, and the bearing has zero play. 1Zpresso builds these grinders to last.

The included carrying case protects the grinder well for travel. I've tossed it in backpacks, suitcases, and camping gear without worry.

How It Compares to the Competition

JX vs. Timemore Chestnut C3 Pro ($90-100)

The Timemore is about $20-30 cheaper and also uses S2C burrs. For most filter coffee brewing, the results are very close. The JX has larger burrs (48mm vs. 42mm in the Timemore), which means faster grinding and slightly better consistency. The JX also feels more solidly built. If budget is tight, the Timemore is great. If you can stretch to $120, the JX is the better grinder.

JX vs. Comandante C40 ($270-300)

The Comandante is over twice the price. Is it twice as good? No. The Comandante produces slightly more clarity and sweetness in filter brews, but we're talking about differences that only experienced palates notice in side-by-side comparisons. The JX gets you 85-90% of the Comandante's performance for under half the price.

JX vs. Baratza Encore ($170 electric)

The Encore is the most popular electric grinder for filter coffee. The JX produces better grind consistency, hands down. The Encore wins on convenience since you push a button instead of cranking. If you grind for one person and don't mind 40 seconds of hand grinding, the JX is the better buy and costs $50 less.

For more options, our best coffee grinder guide covers both manual and electric grinders across all budgets.

Daily Workflow Tips

Here's how I use the JX every morning in about 5 minutes total:

  1. Weigh 15 grams of beans on a scale
  2. Pour beans into the grinder
  3. Set the dial to my usual V60 setting (about 3.2 rotations)
  4. Grind for 35 seconds while heating water
  5. Dump grounds into the V60, brew as normal

The whole process fits neatly into the time it takes my kettle to boil. No waiting, no wasted time. Grinding by hand in the morning has become a meditative part of my routine that I genuinely enjoy.

Maintenance

Brush the burrs every 3-4 days with the included brush. Deep clean (remove the inner burr and brush everything) once a month. That's it. No grinder cleaning tablets needed, no complicated disassembly.

FAQ

Can the JX grind fine enough for Moka pot?

Yes. Moka pot requires a grind finer than drip but coarser than espresso. The JX handles this range well, around 2.0-2.5 rotations from closed. The adjustment steps are fine enough for Moka pot dialing.

Is the JX good for beginners?

It's one of the best beginner grinders, period. The grind quality exceeds what most beginners need, the build quality means it won't break, and the price is reasonable. You won't outgrow it unless you get into espresso.

How does the JX handle oily dark roast beans?

Fine. Oily beans can clog some grinders, but the JX's burr geometry handles them without issues. Just clean the burrs a bit more frequently (every 2-3 days) when grinding dark roasts, since the oils build up faster.

Where should I buy the JX?

Buy directly from 1Zpresso's website or from authorized retailers like Amazon. Avoid third-party sellers charging premiums. The standard JX should cost $110-130. If you're seeing prices significantly higher, you're probably looking at a reseller markup.

My Recommendation

The 1Zpresso JX is the best hand grinder for filter coffee under $150. Full stop. It grinds as well as manual grinders costing twice as much and better than most electric grinders in its price range. If you brew pour-over, AeroPress, drip, or French press and want the best cup quality per dollar spent, the JX delivers. Compare it against other top picks in our top coffee grinder roundup to see how it stacks up.