US
1Zpresso

1Zpresso K-Ultra Manual Coffee Grinder Iron Gray with Carrying Case

  • Manual Grinder
  • 1.2 ounces
  • Aluminum
  • 1
4.6/ 5 on Amazon391Amazon ratings400+bought last month4.2ProductDome score
High confidenceUpdated 5 days agoAmazon data + ProductDome analysis · methodology
Best forYou switch between espresso, French press and pour-over and want one grinder to cover the range

Worth it if you brew across multiple methods and want one dial to cover them; espresso-only brewers chasing the tightest possible adjustment may prefer the J-Ultra's finer steps instead.

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Colors Available

K-Ultra Iron Gray with Carrying CaseK-Ultra Silver with Carrying Case

Need a different one? Pick on Amazon →

ProductDome scorecard

How it ranks among the 17 manual grinders we track

4.2/ 5ProductDome scoreHigh confidence
Owner satisfaction · 56% of scorecategory median 4.6★4.6

4.6★ across 391 Amazon ratings, Bayesian-smoothed toward the category average.

Evidence strength · 17% of scorecategory median 458 ratings3.2

391 Amazon ratings, weighted on a log scale so huge counts don't drown everything.

Buyer demand · 11% of score3.5

400+ bought on Amazon last month.

Data quality · 11% of score3.8

Brand identity, imagery, description and spec coverage.

The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 17 manual grinders we track - how the scorecard works · full manual grinders data report. Confidence: high - strong rating volume and complete data.Updated 5 days ago. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.

Overview

The 1Zpresso K-Ultra is a manual conical burr grinder in iron gray with a carrying case, adjusted through an external dial in 20-micron steps that spans coarse brewing down to espresso fine.

Positioned as the broad-range grinder in the 1Zpresso lineup, it's built for people who brew more than one way rather than espresso alone, which is the main thing separating it from the J-Ultra below.

  • Stainless steel conical burr built for multiple brew methods
  • External dial gives over 100 clicks at 20 microns per step
  • Magnetic catch cup holds 35 to 40 grams of grounds
  • Foldable handle and carrying case, plus a cleaning brush and air blower included

Who it's for

Home brewers who move between espresso, French press and pour-over and want a single grinder to cover that range, plus anyone who wants a manual grinder that folds down for travel.

Strengths and trade-offs

Drawn from this product's published specifications.

What stands out
  • Covers a wide grind range on a single external dial
  • Foldable handle and included carrying case for travel
  • Magnetic catch cup speeds up the grind-and-dose routine
  • Tool-free disassembly with a brush and blower included for cleaning
What to check first
  • No owner reviews yet to confirm real-world grind consistency
  • 20-micron steps are coarser per click than the espresso-focused J-Ultra
  • Manual grinding takes more time and effort than an electric burr grinder

Performance notes

A stainless steel conical burr feeds an external dial offering over 100 clicks at 20 microns per step, covering French press through espresso fine on one grinder. A magnetic catch cup snaps into place and holds 35 to 40 grams of grounds, and the unit disassembles without tools for cleaning, with a brush and air blower included. The burrs are factory-calibrated and rated for 100-200 kg of coffee over their life, backed by a one-year warranty.

Specifications

Brand1Zpresso
Dimensions & fit
Item Weight1.5 pounds
Item Dimensions L x W x H7.3 × 2.4 × 7.7 inches
Capacity & performance
Capacity1.2 ounces
Construction & materials
Material TypeAluminum
ColorK-Ultra Iron Gray with Carrying Case
Included components
Included ComponentsLid
Other details
Number of Items1
Recommended Uses For ProductGrinding

How it compares

This product against the closest alternatives we track in manual grinders.

ProductAmazon ratingRatingsProductDome score
1Zpresso K-Ultra Manual Coffee Grinder Iron Gray with Carrying CaseThis product4.6 / 53914.2 / 5
TIMEMORE Chestnut C3S Pro Manual Coffee GrinderTIMEMORE4.7 / 51,7004.3 / 5
JavaPresse Manual Stainless Steel Coffee GrinderJavaPresse4.2 / 525,6004.2 / 5
CEVING Mini Manual Coffee Grinder With 40 Adjustable SettingsCEVING4.3 / 51,9004.2 / 5
【Sliver】KINGrinder K6 Manual Coffee Grinder Straight Handle Stainless BurrKINGrinder4.6 / 59634.3 / 5
Frequently asked

Questions about the 1Zpresso manual grinders

Common buyer questions answered straight from the product spec data - no fluff, no "it depends".

What brew methods does the K-Ultra cover?

The external dial spans from coarser settings suited to French press through espresso fine, on one grinder.

Does it come with a case?

Yes, this listing (Iron Gray with Carrying Case) includes a travel case.

How is it cleaned?

It disassembles without tools, and a cleaning brush and air blower are included.