Video Overview | Mazzer Kony SG Grind-by-Weight Espresso Grinder

Hey there, it’s Mac from Prima Coffee! Today, we’re taking a closer look at the Mazzer Kony SG—Mazzer’s first offering into grind-by-weight technology.

If you’ve been searching for a grinder that delivers precision dosing, improved workflow, and the durability Mazzer is known for, this might be the one for you. Let’s get into it!

So, what makes grind-by-weight such a big deal? Unlike traditional grind-by-time models, the Kony SG delivers an exact dose of coffee, no matter the grind size or coffee type. That means no more constant daily adjustments just to keep your doses consistent. Whether you’re dialing in first thing in the morning or powering through a busy afternoon, this grinder ensures your dose is on target every time, reducing waste throughout the day and speeding up workflow.

At the heart of the Kony SG is a set of 63mm conical burrs, running at 500 RPM. Compared to flat burr grinders, conical burrs operate at lower speeds, reducing friction and keeping heat generation to a minimum. This is a huge plus in high-volume environments, where excessive heat can impact grind consistency. In terms of grind speed, this thing is no slouch—it grinds at about 3.8 grams per second, meaning a standard double shot takes just 4 to 5 seconds. That’s fast, and combined with the grind-by-weight accuracy, it’s a serious efficiency boost for busy cafes.

Mazzer has also packed in some thoughtful features to improve usability. One of the standout functions is the auto-pause feature—if you remove the portafilter mid-dose, the grinder stops and waits for you to return it before resuming. This makes it easy to settle the grounds, reducing clumping and ensuring an even distribution before tamping.

Another thing to note is dose precision—the Kony SG allows for programming in increments as fine as 1/100th of a gram, giving you more control over your dose weight than most other grinders on the market. You also get full IoT connectivity, meaning cafe owners and baristas can monitor daily usage, track doses, and even receive maintenance alerts directly on their phones. The grinder automatically tracks statistics like burr wear, service needs, and total coffee usage.

Now, let’s talk about what it’s like to use the Kony SG. First off, the grind adjustment collar is easy to work with, and it can be lifted out for burr access without losing your grind setting—which is a small but valuable feature that makes cleaning and maintenance hassle-free. Calibration is also pretty simple—Mazzer includes a calibration weight in the box, and recalibrating just takes a few minutes, something you’ll want to do a couple of times per year to keep everything running smoothly.

That said, there are a few quirks to be aware of. Unlike some other grind-by-weight grinders, the Kony SG doesn’t automatically start grinding when you place the portafilter—you have to initiate the dose manually. However, Mazzer has confirmed that a portafilter activation feature is coming soon so keep an eye out for that. We noticed that it occasionally pulses between one to three times per dose, which seems to be at random. While the grinder is mostly accurate, it does have a variance of about plus or minus .5 grams at times, meaning you might see a slight overshoot or undershoot on occasion.

Another feature worth mentioning is the GFC (Grind Flow Control) system, which is essentially a removable declumper that helps improve grind consistency and reduce static. It’s included in the box and can be swapped out as needed.

So, what’s the verdict on the Mazzer Kony SG? Mazzer has taken their reputation for reliability and added modern grind-by-weight precision, making this a strong option for medium to high-volume cafes looking to streamline their workflow. However, keep in mind that some variance in dose weight can occur, and there’s a slight learning curve with the interface. But overall, if you’re looking for a durable, precise, and tech-forward espresso grinder, the Kony SG is worth considering.

You can find the Mazzer Kony SG at prima-coffee.com, along with lots of other great coffee equipment. Thanks for watching and happy brewing!