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Mahlkonig EK43 Coffee / Espresso Grinder

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Mahlkonig EK43 Product Description

Here it is—the famous and highly debated Mahlkonig EK43. Developed originally by Mahlkonig as a bench grinder for grinding spices, coffee and grains, the EK43 was acclaimed for its power, high-grinding capacity and speed. In 2012 the EK43 made an unforgettable impression on the coffee community around the world when its performance assisted expert barista Matt Perger in winning the World Brewers Cup.

So what about this machine makes it so special? High grinding capacity, speed, durability, power, consistency, versatility and higher extraction yields. Exalted by coffee experts for its ability to produce matchless grind consistency that ultimately serves to create a superior coffee that is aromatic, sweet and clear.


For such a powerhouse, capable machine, the operation is astonishingly straight-forward. This grinder has a convenient hands-free bag clamp feature making it perfect for the bulk coffee retailer. Press on the bag holder handle and slip an open bag on the spout. To clamp the bag, simply release the handle. Vibration during the dispensing of the beans assists in evenly distributing the grinds in the bag. To adjust the grind size, turn the massive rotary knob located on the front of the machine. To clean the dispensing spout, simply depress the bag holder.


One of the main highlights on this machine is its incredible grinding speed at high capacity. Grinding an astounding 2.8-3.4 pounds per minute or 21-25 grams per second.


This grinder offers stepless adjustment, capable of producing all consistencies from French press to Turkish. Grind adjustments are made by rotating the adjustment knob on the front of the machine. Expert baristas around the world have claimed that this grinder produces the most uniform particle size of any grinder on the market today, this means higher extraction yields and superior tasting coffee.


A coveted feature on this unit is its prized grinding burrs, measuring a whopping 98mm, these flat cast steel grinding burrs rotate at a low speed (1740 rpm) to evenly break down beans while preventing heat build-up which changes the flavor of the roast. The motor has the power of nearly two horses. Between the powerhouse motor and top-notch quality burrs, this machine is guaranteed to be one of the most reliable, consistent grinders on the market today. 

Because this machine is depended upon by its users to produce high amounts of grinds at incredible speeds, Mahlkonig has integrated a thermal overload system to protect the motor. The grinder is equipped with an overload circuit breaker above the power switch. There is also a thermostatic sensor located in the motor windings to disrupt the circuit if heat accumulation is too much for the motor. Keep in mind if this occurs, the machine will not be operable for approximately an hour until the unit has had sufficient time to cool off. 


This grinder is fitted with a 2.2lb capacity removable bean hopper that is sealed with a close-fitted lid to guarantee preservation of the beans. A handy “trap door” slide plate is located at the bottom of the hopper that permits the user to detach the hopper from the grinder unit while full of beans without losing any roast. This slide gate also offers the busy coffee retailer the convenience of exchanging hoppers with different beans to improve service capability.

EK43 (Single Hopper) FEATURES

  • Flat 98 mm steel grinding burrs
  • 2.8-3.4 lbs. per minute
  • 2.2 lb. capacity bean hopper
  • Bag clamp and shaker
  • Hopper magnet
  • Thermal overload protection
  • Knock-off device
  • UL certified
  • 1305 watt motor
  • 110 volts
  • Width: 9 inches
  • Depth: 16 inches
  • Height 30 inches
  • Weight: 53 lbs


Video: Mahlkonig Factory Visit

1 Review Hide Reviews Show Reviews

  • 5
    It's a beast!

    Posted by Christopher Kennedy on 29th Feb 2016

    The Service: Above all, service from Espresso Outlet is great. Equipment is priced competitive and fair. Not only would I buy from them again, but plan to buy an espresso machine in the near future. For months I've been saving for and researching various coffee equipment. After stumbling across Espresso Outlet during my search, I reached out directly to ask about their competitive pricing on a particular grinder I was interested in and to ask some questions. Joe responded very promptly. In fact, he caught me off guard with how quickly he replied. In all of my communication with Joe, he was friendly, professional, prompt, and straight forward with advice. There was plenty of questioning and answering because I wanted to feel confident about my purchase. Naturally, I expected Joe to give me advice that's in the best interest of his company. There was never a moment where I felt he had ill intentions or that his opinion was completely biased towards one manufacturer. It's always a pleasure to communicate with him. His business is definitely built around a passion for (great) coffee. The Hardware: Originally I wanted an espresso grinder for an upcoming semi automatic purchase, but our cheap daily goto grinder stopped working. Long story short, "sacrifices" were made and we started looking at grinders that could offer a wider range of grinding for various brewing methods.. The Mahlkonig EK43 and a few others popped up on the radar. We expected the grinder to be ginormous, but only so much is revealed from pictures and seeing them behind coffee bars. Weighing in at 60lbs- this thing is a beast. One of the coolest purchases I made in a while. Technically, this grinder was not intended to be used the way we do. So take my experience with a grain of salt. We single dose each cup. Meaning, we weigh the exact amount of coffee that we plan to brew for each cup (plus a little extra for retention). Pros: It looks awesome. The vertical flat burr alignment seems genius. This thing grinds very fast and consistent. We immediately noticed some more clarity in our coffee. Whether that's just a placebo effect or not, it made the purchase totally worth it. I find the noise level more pleasurable than our previous grinder. I can't say that it's quieter, but it has a different tone. Since we're grinding 20-30 grams at a time, the noise is over in less than 2 seconds. Cons: It's big and heavy. Make sure you have space for it, and probably safe to encourage 2 people move it around. I'd cry if ours ever made contact with the ground after falling. We choose the white, and love it. However, it will look dirty faster. Especially underneath the chute. I have OCD, so vacuuming and wiping is part of my ritual already. I don't regret the white at all, but just know what you're getting into. ~7grams didn't come through the chute on the very first grind out of the box. Every grind after I seem to lose less than a gram from each single dose, which could be great or bad (not sure yet, haven't owned it long enough). It might be possible that coffee retention is at play here. I'm also afraid of the day that I have to take it apart for maintenance and cleaning. It seems easy enough, but not as convenient as the conical grinders that I'm use to. Extras: The sound of the motor spinning up is awesome, and I get a kick out of hearing it slow down. If you're into motorsports at all, you'll likely appreciate the power of the motor on this thing.