The 1ZPresso K-Ultra coffee grinder folds for super-compact packing and even comes with a hard-shell carry case.
Oh, and the best part?
Its one of the most uniform grinders Ive ever used.
I am on a mission to find thebest coffee grindersin existence.
That doesnt just mean your traditional high-RPM electric grinders that operate at the same volume as a motorcycle.
Speaking of hand-crank grinders the 1ZPresso K-Ultra is one of the best Ive ever used, hands-down.
And the best part of all?
The K-Ultra has a foldable handle and comes with a hard-shell carry case, making it perfect for traveling.
Theres nothing as convenient as the K-Ultra, and Ill tell you why.
Find out everything in this 1ZPresso K-Ultra grinder review.
The cheapest option is the1ZPresso Q Air, which is just $69 due to its compact size.
The$109 1ZPresso Qis a decent midway option for pour-over with a 20g capacity.
Its a 7-inch cylindrical shape with two chambers.
Like the Comandante C40, the hand crank is quite long and heavy.
However, unlike the C40, the hand crank is foldable for easy storage.
1ZPresso K-Ultra review: Grind adjustment
Theres a huge range of grind adjustments clicks.
Adjusting the grind is easier than the Comandante C40 MK4.
With the Comandante, you have to adjust the burrs from the burrs themselves, above the catch chamber.
you could adjust the grind even further by removing the internal ring and turning the external dial.
I found this a little fiddly and time-consuming, so I wouldnt recommend doing this for everyday brewing.
However, its good that the option is there.
They are: ease of use, static and clumping, uniformity, and retention.
Ease of use
This parameter encompasses the general use of the grinder.
I found the K-Ultra very easy to use on a day-to-day basis.
The K-Ultra has a maximum capacity of around 40g of coffee beans, depending on coffee bean size.
Static & clumping
Obviously the very nature of crushing solids into smaller solids will create static.
Its physically impossible for a coffee grinder to completely defeat static.
Remarkably, though, this static didnt generate huge clumps of static coffee grounds.
Id say the clumping was better than theSage/Breville Dose Control Proand about even with the Comandante C40 MK4.
Uniformity
To test grind uniformity, I used my Kruve coffee sieves.
Each sieve corresponds to a different particle size.
On top of its ability to grind superfine, the K-Ultra was alsoveryuniform.
Check out the results above; almost all grind sizes have huge jumps from 0% to 90%.
This shows the burrs are capable of crushing the coffee beans to consistent sizes.
Id recommend this wholeheartedly for people looking for a grinder that can tackle both espresso and cold brew.
Here are my results.
Weight before grinding
Weight after grinding
Retention %
20g
19.2
0.8
4%
0.0
19.7
0.3
1.5%
Avg.
retention
-
1.8%
As you could see, the retention is really low at just 1.8%.
In general, Im thoroughly impressed with this performance it rivals the best coffee grinders, 100%.
It appears 1ZPresso has designed this grinder specifically for those who need great coffee even while traveling.
If you need a smaller carry case, 1ZPresso also sells a$20 cylinder case.
However, 1ZPresso specifically warns against cleaning it with water.
If the grinder breaks, 1ZPresso offers a 1-year warranty, which is the same as Comandantes.
Ill have to keep looking for my rainbow grinder if I find it, Ill let you know.
If that sounds like you, then theres really nothing better than the K-Ultra.
