1Zpresso K-Ultra Manual Coffee Grinder: Exploring Its Unique Burr Set

Written By : Steve

Experiencing a cup of coffee that’s as rich in flavor as it is in aroma starts with the right grind. We recently got our hands on the 1Zpresso K-Ultra Manual Coffee Grinder, and its performance can only be described as a coffee aficionado’s dream. For those who treasure the ritual of coffee grinding, the satisfaction that comes with the K-Ultra’s smooth handle and precision grind adjustment is unparalleled.

From the very first twist of the foldable handle, you notice how the thoughtful design contributes to a comfortable grinding process, even when aiming for the finest powders. The external adjustment ring is a game-changer, giving us total control over the grind consistency—whether preparing an espresso shot or a French press. Plus, the quality of grind that the specialized “K Burr” produces really does bring out those subtle flavors in the beans.

However, everything is not perfect. While the magnetic catch cup is innovative, some of us found it requires a bit of finesse to reattach smoothly. That said, the capacity it provides is generous, allowing us to grind what’s needed for a large carafe or multiple espresso servings. The build quality feels durable, promising long-term use that’s backed by a reassuring warranty.

Bottom Line

For a manual grinder that can rival electric models in precision and ease, the 1Zpresso K-Ultra Manual Coffee Grinder stands out.

Its foldable handle and numerical external adjustment make grinding a joy, while the K Burr ensures a consistent and superior grind every time.

Ready to enhance your coffee routine? Click here to grab your 1Zpresso K-Ultra Manual Coffee Grinder and savor the difference quality grinding makes.

1Zpresso K-Ultra Manual Coffee Grinder Overview

The moment we laid hands on the 1Zpresso K-Ultra Manual Coffee Grinder, we were impressed by its sturdy build and the sleek iron gray finish. This compact grinder embodies the perfect balance between aesthetics and functionality. Its foldable handle is a welcome feature, enhancing portability without compromising on a solid grip. The K-Ultra is an ideal travel companion for coffee lovers, fitting easily into our lifestyle with its practical carrying case.

Adjusting the grind settings feels intuitive, reminiscent of an electric grinder’s convenience. The external adjustment ring offers a meticulous level of control, ideal for dialing in the exact grind for a variety of coffee brewing methods. The distinctive heptagonal “K Burr” at the heart of the K-Ultra elevates the grinding experience—our coffees have never tasted brighter or richer.

We found the magnetic catch cup to be particularly user-friendly. A simple twist is all it takes to detach it, and its generous capacity minimizes the need for frequent emptying. The built-in assurances from 1Zpresso on the burr’s alignment and absence of wobbly parts instill confidence in the longevity of this tool.

Plus, with a one-year limited warranty and a grind capacity estimated between 100-200KG, it’s clear that 1Zpresso K-Ultra Manual Coffee Grinder understands the dedication of daily coffee brewing enthusiasts. Based on our use, the K-Ultra has proven to be a reliable and precise manual grinder that has become an integral part of our coffee ritual.

Key Features

After spending some time with the 1Zpresso K-Ultra Manual Coffee Grinder, we found its key features stand out in the crowded space of manual coffee grinders. Balancing convenience with quality, this grinder brings a lot to the table for coffee enthusiasts.

Foldable Handle for Portability

The K-Ultra’s foldable handle impressed us with its solid build and space-saving design. It’s obvious that portability was a key consideration in its development. When we packed it for a weekend trip, the handle folded down smoothly, making the grinder fit snugly in our bag without taking up much room. This neat feature didn’t compromise the sturdiness when grinding—a concern we’ve had with other portable grinders.

Precise External Adjustment Ring

One aspect we can’t overlook is the external adjustment ring. The precision with over 100 clicks, each signifying 20 microns, allowed us to dial in the exact grind size needed. As someone who values the subtleties in coffee grinds, we found this degree of control typically only seen in electric grinders to be a considerable advantage.

Specialized K Burr for Consistent Grinding

The specialized heptagonal conical “K Burr” is a standout, specifically engineered to enhance the grinding performance. Brewing coffee after using the 1Zpresso K-Ultra Manual Coffee Grinder yielded consistently fine results, whether we were going for a finer grind for espresso or a coarser one for French press. The consistency in the grind size led to an exceptional cup of coffee that highlighted the full flavor profile of the beans.

Quick-Release Magnetic Catch Cup

Lastly, the magnetic catch cup is a clever feature for convenience. With a simple twist, it releases quickly, streamlining the grinding process and preventing any mess. The capacity is generous, holding between 35 to 40 grams of coffee. We found this to be sufficient for our needs, allowing us to prepare several cups of coffee without the need to empty the cup too frequently.

Pros and Cons


Having used the K-Ultra, we’ve noticed several advantages. First off, the foldable handle is a standout feature for us as it means we can easily take our coffee-making ritual on-the-go without extra bulk. The size is perfect for slipping into a bag or storing away in a small kitchen.

We also appreciate the external adjustment ring that offers precise control over grind size with over 100 settings. It’s made dialing in the perfect grind for different brewing methods remarkably straightforward—similar to using an electric grinder but with the hands-on feel we love.

The specialized “K Burr” has proven its worth by consistently delivering a uniformly ground coffee, yielding a cup that’s bright and rich in flavor. This has been especially noticeable when we explore various brewing styles.

Lastly, the magnetic catch cup design is both innovative and functionally superior. It’s refreshingly simple to detach for quick access to our grounds, complementing an already streamlined process.


On the downside, despite its portability, those who prefer not to exert manual effort in their coffee preparation might find the hand-crank mechanism a bit laborious, especially when grinding larger quantities of beans.

Additionally, while it’s impressive how it replicates an electric grinder’s precision, the price point could be steep for casual coffee drinkers who may not require such meticulousness in their grind settings.

The product does come with a one-year limited warranty, but whether the grinder will maintain its initial performance beyond this period is something we’re keen to monitor—as any product with moving parts is susceptible to wear over time.

How the 1Zpresso K-Ultra Enhances the Brewing Experience

We’ve found the 1Zpresso K-Ultra Manual Coffee Grinder to be a noteworthy companion for anyone who takes their coffee seriously. Its foldable handle and compact design not only save space but also make it an ideal grinder for those of us who appreciate the convenience of portability. The external adjustment ring offers exceptional control over the grind size, making it easy for us to fine-tune our coffee’s coarseness to our liking with remarkable precision.

The K-Ultra’s specialized “K Burr” is particularly impressive, promoting consistency in the grind which is crucial for various brewing methods. This feature has allowed us to experiment and discover rich and nuanced flavors that elevate our daily cup. Additionally, the quick-release magnetic catch cup is a clever addition, simplifying the process of transferring our freshly ground coffee from the grinder to the brewer, accommodating enough beans for several servings.

We were initially skeptical about the need for numerical adjustment settings on a manual grinder, but after using the 1Zpresso K-Ultra Manual Coffee Grinder, it’s clear that such a feature bridges the gap between manual and electric grinders in terms of convenience without sacrificing the tactile satisfaction of grinding by hand.

The product guarantees further instill confidence in this device’s longevity and quality of performance. Although we have not reached the estimated grind capacity to test the durability claim, the absence of wobbly parts thus far suggests a well-built mechanism.

In conclusion, the K-Ultra strikes a comfortable balance between the art of manual brewing and the precision of modern technology, making it a reliable tool in our coffee brewing routine.

Customer Reviews

We’ve had a hands-on experience with the 1Zpresso K-Ultra Manual Coffee Grinder, and it’s fair to say that it stands out, particularly for those who savor their morning pour-over. Consistent grind quality, something we’ve particularly noticed, is often highlighted in reviews. Customers echo our appreciation for the packaging, which is secure and thoughtfully designed. The grinder’s smoothness and its external adjustable setting allow for a level of precision that coffee aficionados will value.

However, our experience aligns with some users noting that, while the grinder’s performance is exceptional, the manual operation might be a tad cumbersome for some, especially during busy mornings. Nevertheless, the foldable handle and carrying case add a touch of portability that we find convenient.

Overall, with a strong average rating of 4.8 out of over 300 ratings, this grinder has evidently found its place in the daily routines of coffee lovers. The brand’s commitment to quality and usability shines through, aligning with our own assessment after using this durable stainless-steel conical burr grinder ourselves.

Product Guarantees and Customer Support

Having used the 1Zpresso K-Ultra Manual Coffee Grinder, we’re quite impressed by the after-sale services provided by 1Zpresso. The brand stands firmly behind their product with a one-year limited warranty, which speaks to their confidence in the grinder’s durability and quality. In the world of coffee grinding, daily use can quickly reveal any flaws, but the K-Ultra’s performance remains consistent over time.

Customers can feel secure with their purchase, knowing there are guaranteed no loose parts or wobbly burrs—a common issue with lesser grinders. If a problem does arise, 1Zpresso’s customer support is responsive and helpful. Our experience with their service was satisfying; they were eager to resolve any issues and answer questions, ensuring we could continue to enjoy our coffee ritual uninterrupted.

What’s commendable is how the grinder maintains a high level of performance, with the burr expected to stay sharp for a substantial amount of coffee — around 100-200KG of grinding capacity. This assurance goes a long way in building customer trust and ensuring the grinder is a worthwhile investment for any coffee lover’s kitchen.

Final Thoughts

After spending quality time with the 1Zpresso K-Ultra Manual Coffee Grinder, we’ve found it to be an exceptional tool for coffee lovers. Not only does it look good on the counter with its sleek, iron gray finish, but its performance is also remarkable.

The stainless steel conical burr and numerical external adjustable settings allow for consistent grinds that enhance our morning coffee ritual. Significantly, it comes with a carrying case that underscores its portability, making it a great companion for travel or office use.

However, we noticed that mastering the settings may take a few tries, which could be a slight hurdle for beginners. And while the manual grinding process is meditative for some, it might be a bit of a workout for others. But once you get the hang of it, the effort pays off with superior taste and freshness. Overall, this grinder strikes a balance between functionality and aesthetics, placing it high on the list for those who take their coffee seriously.

Frequently Asked Questions

How does the 1Zpresso K-Ultra Manual Coffee Grinder compare to the Comandante C40 in terms of grinding performance?

We’ve found that the K-Ultra holds its own against the Comandante C40. The specialized “K Burr” provides grind consistency and performance that caters well to multiple brewing methods. While the C40 is known for its precision and quality, the K-Ultra steps up with its intuitive external adjustment ring that offers a similar level of finesse in fine-tuning the grind size.

What are the various grind settings available on the 1Zpresso K-Ultra Manual Coffee Grinder and how do they affect coffee extraction?

In our experience, the K-Ultra boasts a wide array of grind settings. With over 100 clicks available, each corresponding to a change of about 20 microns, it provides us with full control from very fine to quite coarse. This level of adjustability directly translates to precise coffee extraction, allowing us to achieve the desired flavor profiles whether we’re making espresso or French press.

Can the 1Zpresso K-Ultra Manual Coffee Grinder grinder achieve a fine enough grind for espresso?

Yes, absolutely. The granularity of adjustments on the K-Ultra ensures that achieving a fine grind for espresso is within reach. We’ve consistently produced grinds that are ideal for a rich and full-bodied espresso shot.

What are the main differences between the 1Zpresso K-Ultra Manual Coffee Grinder and the 1Zpresso ZP6 models?

While using the K-Ultra, we noted that it’s specifically designed with versatility in mind, which is highlighted by its broad range of grind settings and the foldable handle for portability. In contrast, the ZP6 is tailored more towards those who prefer a dedicated espresso grind, with its fine grind settings and sturdier build.

How is the build quality and durability of the 1Zpresso K-Ultra Manual Coffee Grinder?

Our K-Ultra has shown impeccable build quality and durability. It’s crafted from aluminum which offers a solid, sturdy feel in the hand. Its longevity is reinforced by the manufacturer’s guarantee that the burr remains fixed and free from wobbling or loosening over time, with an estimated grind capacity of about 100-200KG.

What is the grinding consistency of the 1Zpresso K-Ultra Manual Coffee Grinder and how does it impact the flavor of the coffee?

The grinding consistency is one of the K-Ultra’s strong suits. The heptagonal conical burr ensures uniformity in grind size which is crucial for extracting maximum flavor. In our sessions, the consistency directly impacted the coffee by making it possible to extract flavors that are both bright and rich, setting a high bar for other manual grinders.