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1Zpresso was founded in Taiwan by a team of coffee lovers with engineering backgrounds, set on solving a problem specialty coffee had lived with for years: manual grinders that couldn't match the consistency of their electric counterparts. Their answer was a line of hand grinders built around precision-machined adjustment systems rather than simple click-stops. Today 1Zpresso is one of the most respected names in manual grinding worldwide, trusted by home brewers and travelling baristas alike.
The 1Zpresso J-Ultra Manual Coffee Grinder is the brand's flagship hand grinder, built for brewers who want zero compromise between portability and precision. It pairs hefty 48mm stainless steel burrs with an external micro-click adjustment ring capable of 8-micron steps — the kind of fine-tuning usually reserved for electric grinders, in a unit that folds into a travel bag. This is manual grinding taken as seriously as the coffee inside it.
The hefty burr set makes short work of a dose while keeping particle size uniform, so your extraction stays balanced from the first pour to the last.
100 clicks per rotation move the burr in 8-micron steps, giving you the resolution to fine-tune between pour-over, Aeropress and batch brew without guesswork.
Lock in your favourite setting on the memory ring so you can experiment freely and always find your way back to it.
The burr assembly comes apart by hand for cleaning, and goes back together without losing your calibration.
A solid aluminium body keeps the grinder light without feeling flimsy, with no plastic in the parts that take the daily wear.
The handle folds flat and the included case keeps the grinder and accessories protected, whether it's living on your counter or in your carry-on.
From pour-over to Aeropress, French press to batch brew, the grind range covers the methods most home brewers actually use.
You're the kind of brewer who wants electric-grinder consistency without the countertop footprint or the noise — someone who takes a single-origin pour-over, or a coffee brewed on the road, just as seriously as an espresso at home. The J-Ultra rewards a little patience with a dial-in process you only need to do once, then repeat, cup after cup. Precision you can pack in a bag — coffee doesn't care where you brew it, and neither should your grinder.
| Burr Type | Stainless steel conical burr |
| Burr Size | 48mm |
| Grind Adjustment | External micro-click ring, 100 clicks per rotation, 8-micron steps |
| Dosing Method | Magnetic twist-off catch cup |
| Catch Cup Capacity | 35–40g |
| Dimensions (W×D×H) | 19 x 18.5 x 5.5 cm |
| Weight | 700g |
| Colour Options | Iron Grey |
| Use Case | Home and travel manual brewing — pour-over, Aeropress, French press, batch brew |
| Warranty | 1-year limited warranty |
The 1Zpresso J-Ultra Manual Coffee Grinder brings genuine precision engineering to a hand grinder — micron-level adjustment, robust steel burrs, and travel-ready durability in one compact unit. It's built for brewers who refuse to choose between quality and portability. Dial it in once, and every grind after that is exactly where you left it.
Hey, we get it, coffee equipment is not cheap! And paying the bills with coffee takes time. Use our payment options to ease up some cashflow!
We now offer you the following options:
1) Settle immediately with either YOCO or PayFlex
2) Shop on credit with Mobicred (via Peach Payments)
3) Use now, pay later with Payflex (via Peach Payments)
4) Use now, rent until you own with Buna Rent-to-own
5) Apply for financing through Buna Coffee (refer to this link)
