Mazzer Robur Review: Grind Genius or Overpriced Machine?

I’ve been wanting to write a Mazzer Robur review for ages, seeing as I used a Robur during my time working in busy cafes. I absolutely love this big, beautiful espresso grinder and I’ll start by saying I definitely recommend it.

With that said, the Mazzer Robur isn’t for everyone, so keep reading this review to see whether it’s the grinder you’ve been looking for!

Premium commercial grinder

Mazzer Robur S Espresso Grinder

As good as it gets for espresso grinding

Premium materials

Sturdy construction

Programmable dosing

Huge conical burrs

Low RPM motor

Very expensive

CHECK PRICE

Mazzer Robur Review Overview

Costing an eye-watering $3,600.00, the Mazzer Robur S Electronic Coffee Grinder is a super premium commercial espresso grinder. This baby features high-end everything, including massive conical burrs, stepless micrometric grind adjustments and programmable dosing.

The Robur S is meant as a successor to the enduring Mazzer Robur Electronic, which is the model I worked with. And while the new generation Robur has been significantly upgraded, it’s still similar enough that I feel confident assessing it for you.

Before going any further into this Mazzer Robur review I should say that this grinder may not be suitable for most home baristas. In mean, if you have piles of cash lying around and have a palatial kitchen then don’t think twice! However, this espresso grinder is really meant to be used in a busy commercial setting. That’s where its high-quality design, precision engineering and outstanding performance will really shine.

Mazzer Robur Grinder Features

Let’s continue this Mazzer Robur review by looking at the grinder’s standout features.

Mazzer Robur S Dimensions and Build Quality

The Mazzer Robur S is a big, bulky brute of a thing, rising to 28.5 inches (72 centimeters) with the bean hopper attached. Speaking of, the hopper has a generous 3.5-pound (1.6-kilogram) capacity, which could seem like overkill for home use. With that in mind, home baristas might want to check out my guide to the best single dose grinders.

Featuring rugged aluminum construction, the Robur S has been designed to last for a very long time. And clocking in at a hefty 62 pounds (28 kilograms), it’s far from the lightest grinder around.

Programmable Dosing

A standout feature of the Mazzer Robur is its programmable dosing function. You’re able to set the dose for single, double and triple shots, removing any guesswork.

Of course, the dose is timer-based, so the amount of ground coffee that ends up in your portafilter will change when you make a grind setting adjustment. So, it’ll be good to have a coffee scale on hand too. Check out my Acaia Lunar Scale review to learn about the best coffee scale out there.

Incidentally, there’s also a manual dosing button, which comes in handy when you’re dialing in your shots.

On-Demand Grinding

When it comes to efficiency and zero waste, the Mazzer Robur S Espresso Grinder excels. That’s because this model eschews the traditional doser chamber in favor of portafilter-activated, on-demand grinding. The Robur S distributes coffee grounds directly into your portafilter, so you’re guaranteed the freshest coffee, as well as only the amount you’ll need for an espresso shot.

Mazzer Robur Burrs

Part of what makes this one of the best grinders for espresso is its enormous 71mm stainless steel conical burrs. Listen, I’m not about to wade into the flat burr vs conical debate on this Mazzer Robur review. After all, there are pros and cons for each type of burr. However, during my time working with a Mazzer Robur I was impressed by the espresso flavor profile these burrs helped produce.

Even better, the size of these conical burrs means they help reduce heat buildup during heavy use while still being capable of producing large amounts quickly.

Mazzer Grinder Settings

Thanks to its stepless micrometric grind adjustment mechanism, the Mazzer Robur S offers near infinite grind settings. The adjustment collar sits just below the bean hopper, and adjusting the grind is easy thanks to pegs that screw into the collar itself. At this point, I should remind you to only make grind adjustments when the motor is running. That way, you’ll avoid damaging the burrs.

Mazzer Robur Motor

This impressive commercial espresso grinder is equipped with a super powerful 900 watt motor. Why is this such a big deal? Well, a more powerful motor means the grinder can quickly process coffee beans without struggling in a high-volume environment.

Trust me, from my experience using a Robur, the grinder will never struggle during cafe rushes. Another thing to take note of is the fact that the Mazzer motor runs at just 500 rpm, which is another way the grinder keeps heat buildup to a minimum.

Grind Flow Control System

One negative aspect of the original Mazzer Robur E was its unfortunate levels of grind retention. There was simply too much static charge, making the grinder less consistent than it should have been. Fortunately, the manufacturer has made impressive changes to the newer Robur S, claiming that grind retention has been reduced by over 50 percent. Best of all, the new Mazzer Robur S is fitted with a powerful declumper, which aids in creating fluffy grounds with minimal static charge. The end result is increased uniformity of grind size and higher levels of consistency. Both of which result in sweet and sublime shots of espresso.

Mazzer Robur S Electronic Grinder Cooling

Although the low-rpm motor and large burr set are important factors in reducing heat buildup, it’s the Mazzer cooling system that really keeps this grinder from overheating. That way, the Mazzer Robur S can handle a high-volume commercial environment without any problems whatsoever. In fact, there are two separate fans on board, showing that the manufacturer really means business!

How to Use the Mazzer Robur S Electronic Espresso Grinder

For the purposes of this Mazzer Robur review I won’t go into great detail about how to use the thing. After all, programming the dose is quite an involved process, and that’s what the user manual is for!

Still, I can give you a brief synopsis of what to expect. For starters, you should thoroughly rinse the bean hopper before first use, then let it dry completely. Once that’s done, fill it up with your best espresso beans.

Next, attach the portafilter fork – it’s fully adjustable, so spend time finding the right position for your portafilter. Now it’s time to dial in your grind setting. This will take some time, and you’ll need to pull quite a few shots in the process. But moving the adjustment collar is easy, as long as you do so as the grinder is running.

Once you’re satisfied, consult the user manual for instructions on how to program the dose buttons. Now you’ll be good to go! To pull a shot, simply insert the portafilter into the cradle and push back to activate grinding.

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Mazzer Robur S Cleaning

Cleaning the Mazzer Robur S is super important if you want the thing to perform at its best. However, there really isn’t that much to take care of. Seeing as this grinder offers such impressive grind retention, you won’t find much in the dosing funnel. That said, I’d recommend getting in there with a soft brush after each day’s use.

Elsewhere, keep the bean hopper clean by wiping it out with a paper towel once a week to remove any coffee oils. Finally, make sure to remove the burrs once in a while before brushing them off. Oh, and vacuuming out the burr chamber is never a bad idea.

Mazzer Robur S Electronic Coffee Grinder Specifications

Verdict: Mazzer Robur Review

Premium commercial grinder

Mazzer Robur S Espresso Grinder

As good as it gets for espresso grinding

Premium materials

Sturdy construction

Programmable dosing

Huge conical burrs

Low RPM motor

Very expensive

CHECK PRICE

As I’ve mentioned a couple of times, I absolutely loved using the Mazzer Robur during my time as a working barista. I can only say that this workhorse espresso grinder delivers consistent results no matter how much is asked of it. And while it might not be the best burr coffee grinder for a home espresso bar, it’s definitely worth considering if you’re thinking of opening a coffee shop or restaurant.

Mazzer Robur Review FAQ

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