This assessment is lengthy over due. I’ve had the R3 Blade in rotation for over a 12 months, and I additionally used it solely on a 12-day journey to Japan. So by now I do know it fairly properly.
Fast Take
As we now have come to count on from MHW-3Bomber, the development, and the standard of supplies are surprisingly glorious despite being positioned as a funds model.
The grinder appears and feels premium: strong metallic, crisp machining, magnets all over the place on the catch cup. This factor punches manner above its worth level.


First Impressions
All-metal physique, tight tolerances, easy bearings and an extended deal with that provides actual leverage.
The magnetic catch cup locks with authority and has extra magnets than all its pricier rivals.
Exterior adjustment is sweet. And there are 60 clicks per rotation in 16-micron steps.
Ergonomically it’s grippy and steady in hand, neither too large nor too small. The one off word is the faux-wood knob that may creak slightly throughout quick cranking; an honest compromise at this worth degree.
It has a strong efficiency out of the field – however there’s even a surprisingly robust improve path for tinkerers! Not too long ago I discovered that you would be able to change the inventory cone burr and slot in options like Kinu’s pour-over burr. That makes it much more fascinating in my view. Earlier than it was a wonderful newbie/intermediate grinder, however now there’s a clear improve path in the event you ever get bored with the inventory flavors.
How It Suits within the Market
I see this as the brand new and higher different to the 1Zpresso J. It’s a workhorse that most individuals shall be happy with.
However then you definitely even have instruments free disassembly and upgradeable cone burr.
Nevertheless, in comparison with pricier rivals like Comandante C40, 1Zpresso Okay-Extremely, and Mavo Phantox, the R3 Blade feels a bit much less elegant and polished.
What I Appreciated
- Clean bearings, lengthy deal with, glorious leverage
- Magnetic catch cup that locks firmly and cleanly
- Exterior adjustment with positive steps for espresso and filter
- Removable interior burr: You should utilize different 48 mm cone burrs – together with each Italmill and Etzinger fashions!
- Good, candy cups with all-round efficiency
- The built-in (however non-compulsory) sieves (whereas I don’t use it a lot, it nonetheless deserves credit score for being modern)
What I Didn’t
- Branding and “militaristic” naming aren’t my vibe
- Fake-wood knob can creak and feels much less premium
- Static is frequent (RDT is suggested)
- With out some sort of of revolution counter, it’s onerous to know what rotation you’re at. They need to look to Kingrinder and 1Zpresso for inspiration right here.
- The flavour profile/readability with inventory burrs is a step beneath the highest handbook grinders in the marketplace
Dwell from the Testing Bench
After receiving curiosity from followers on YouTube about how the R3 blade with Kinu’s POB (Pour Over Burrs) compares to the Kinu M47 with POB, I performed a sequence of side-by-side assessments with my Hario Change setup.


- Check 1: Preliminary Dial-In
- I began by dialing each grinders to match drawdown time and TDS.
- End result: Too near name. The cups tasted remarkably comparable.
- Check 2: Pacamara Espresso
- Blind tasting: I most popular the R3 blade. It was sweeter and richer.
- Regardless of the Kinu M47 having a slower drawdown (about 5 seconds longer), its TDS measured 0.05 to 0.07 decrease than the R3 blade.
- Increased TDS often creates a bonus in blind comparisons, so I didn’t put an excessive amount of emphasis on this consequence. Possibly one thing was off in my brewing parameters.
- Check 3: Totally different Espresso, Identical Settings
- I stored grind settings similar and switched to a special gentle washed espresso to confirm the sample.
- End result: Once more, I most popular the R3 blade blind, and once more it measured 0.05 to 0.07 larger in TDS. It was a bit sweeter and extra full-bodied.
- This time I had ensured and verified that precisely the identical quantity of espresso beans have been brewed all the way down to the decimal. Regardless of the TDS distinction probably skewing outcomes, the flavour profiles remained very comparable between the 2 grinders.
- Check 4: Adjusted for TDS Matching
- This time I floor a bit finer on the Kinu Phoenix to higher match TDS and used a premium washed Panama Geisha (rose, peach, lemon iced tea, honey, silky).
- This time the distinction was clear: I most popular the R3 blade by a large margin.
- The R3 produced a juicy, balanced cup with silky physique, clear taste notes, and pleasing acidity.
- The Kinu M47 exhibited comparable taste notes however was much less candy, extra hole, and noticeably astringent. Not a terrific cup.
- TDS measurements confirmed they have been inside my most popular margin of error (0.01 to 0.02 distinction), making this a sound comparability.
- Day Two: Testing at Coarser Settings
The next day, I needed to discover how the grinders carried out at coarser settings with a recent palate. - Check 1
- I most popular the Kinu M47 within the cup, however the extraction calculations revealed the TDS was 0.10-0.13 larger. Not a significant consequence.
- Check 2
- I dialed the R3 finer to compensate, however the POB nonetheless had a a lot slower drawdown and better TDS.
- Once more, I most popular the M47 — however once more, this wasn’t a consequence I’d emphasize given the TDS nonetheless being 0.10 larger.
- Check 3
- I dialed the R3 even finer and switched again to the Panama Geisha from the day prior to this.
- Lastly, I achieved what I used to be in search of: drawdown inside 2 seconds between grinders and TDS inside my most popular 0.01 to 0.02 vary.
- The cups have been very shut this time. The R3 had only a contact extra physique, which made me favor it blind, however total they have been fairly comparable.
Context Value Noting: My R3 makes use of the older POB with black coating, whereas the M47 the place I’ve put in the newer golden-coated POB (which can also be much less seasoned, having been acquired particularly for this comparability). Kinu (and lovers) typically take into account that the efficiency and geometry between the black and the golden cone burr is similar.
Abstract: Throughout these assessments, I confirmed a constant desire for the R3 blade with POB when each have been dialed in precisely the identical.
Nevertheless, going into this, the actual query wasn’t actually whether or not one setup dominates throughout all parameters, however reasonably: Is the R3 an acceptable service for the POB or is it only a random coincidence that doesn’t provide actual world worth? Is even it value shopping for that further cone burr to experiment?
From what I’ve seen, the reply is sure! The R3 produces very pleasing pour over with the POB put in.
A bonus is that the espresso can also be fairly good with an fascinating texture. It even grinds sooner than with the inventory burr (a plus for me), although it does require significantly extra torque, which is value maintaining in thoughts. If in case you have decrease grip energy the inventory burr is preferable.
Unresolved Questions
- I nonetheless haven’t discovered the optimum use-cases for sifting. The included screens might help readability for pour-over, however outcomes range and you’ll lose physique if overused.


First Sip Verdict
Purchase if you’d like a funds grinder that may do the whole lot moderately properly whereas providing a premium UX.
Inventory burrs ship candy, blended cups which might be forgiving throughout roast ranges. For espresso the flavour profile is a bit muddy with tendency to astringency on medium and lightweight roasts.
However add a Kinu 48 mm POB and it will get sooner and cleaner for each espresso and filter.
In the event you worth aesthetics or final light-roast readability, look to higher-end choices; in any other case that is considered one of my prime picks at its worth vary.
Alternate options & Hyperlinks
Specs
- Burr geometry / materials / dimension: 48 mm with a 32 mm cone, chrome steel. Works with a number of different cone burrs; for instance these from Italmill and Kinu
- Grind vary: espresso by means of filter; 60 clicks per rotation in 16 µm steps
- Grind time (espresso & filter): inventory ~50–60 s for 16 g espresso relying on roast degree; ~30 s for 15 g pour-over
- with Kinu 48 mm POB ~40 s for 16 g espresso!
- Capability: ~30 g
- Value: funds tier, notably cheaper than most “flagship-feel” rivals