Compak K3 Touch Advanced Espresso Grinder


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  • – Quality Espresso Grinder
  • – Flat Steel Burrs
  • – Stepless Grind Adjust
  • – Single or Double Shot Dosing

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Compak understands that sometimes power and amazing functionality simply are not enough. If you're going to shell out for a pricey piece of coffee hardware, it should look good too. That's why the company created the K3 Touch Advanced Doserless Grinder. The K3 is ideal for home or light commercial use and features a large coffee bean hopper that's designed to prevent jamming, an easy-to-clean ground chute and settings for single, double or constant grind quantities. As for looking good, you'll notice the K3's clean lines and attractive design are leaps and bounds above most other mid-range grinders on the market.

Features and Functionality

  • Stepless Grind - Stepless grind adjustment makes it easier than ever to make tweaks to the fineness of your grind without complicated adjustments with tools.
  • All About Beans - The grinder is designed to operate using minimal RPMs, which means that the 58mm flat burrs stay as cool as possible and do not transfer excess heat to your roast. The hopper holds up to half-a-pound of beans — more than enough for home or light commercial use.
  • Multiple Dosing Systems - The K3 features single, double or continuous dosing systems with a twist of the easy-access aluminium handle.
  • Keep It Clean - The design of the K3 makes cleaning the bean hopper, ground chute, and grinder a snap.
  • Form Matters - The K3 has an impressive and attractive design.
  • Stepless - With a quick rotation of the hopper lever, you can easily advance beans.
  • Save Jams - Many other similar grinders are more prone to jams between the hopper and grinder. That is not the case with the K3.
  • Smaller Hopper - While the half-pound hopper is great for home use, it might be too small for cafe use.
  • Fixed Position Tamper - The fixed position tamper eliminates a bit of space under the ground chute.
Suitable Applications Coffee Press, Drip Coffee, Espresso, Fine Drip / Pour Over, Turkish
Minimum Time to Grind Double Shot 5 to 10 seconds


Manufacturer Compak
Width 6.6 inches
Depth 12.0 inches
Height 16.5 inches
Watts 175W
Volts 110V
Case Material Aluminum
Bean Hopper Capacity 8 oz
Dosing Options Timer - up to 60 sec
Adjustment Configuration Stepless - Infinite Settings
Grinder Style Burr - Flat Steel
Burr Diameter 58mm
Timer or On/Off Switch On/Off Switch Only
Material Aluminum


Browse 13 questions and 27 answers
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I own a Rancilio Silvia. Will this grinder keep up with the Silvia's infamous pickiness with the fineness of the grounds?
Jaime C on Jul 17, 2015
Best Answer: Absolutely! This coffee grinder has been designed using the latest computer and engineering technology.The result is a high quality product offering exceptional grinding and dispensing capabilities. You will definitely be able to dial in your grind to just the right setting with this grinder!
Reply · Report · Michele BStaff on Jul 25, 2015
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I have heard that this grinder has undergone some design changes fairly recently along with a slight name change (now called the Compak K3 Touch Advanced on the Compak website.) Is the model version being sold here the newest/most current version available?
A shopper on Oct 11, 2014
Best Answer: Yes, I double checked with our supplier and we are currently offering the Compak K3 Advanced. Thanks for the heads about the new listing and we will update the site to reflect Advanced right away!
Reply · Report · Teri KStaff on Oct 14, 2014
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Can you please do a new demo on the updated version of the K3 touch?
Budmont on Oct 14, 2015
Best Answer: I will add it to our list of videos to do!
Reply · Report · Michele BStaff on Nov 6, 2015
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Unfortunately my wife prefers decaf and I am not sure if I have to buy two machines because of that. Would it work just to exchange hoppers say two times a day? Would this work?
A shopper on Dec 14, 2013
Best Answer: The hopper is easy enough to remove, but the beans will drop down into the area around the burrs each time you open the flap at the bottom of the hopper. This flap is what would allow you to close the hopper and replace it with another with the beans inside. You would have to grind whatever fell down into the burrs during a switchover. This could waste the equivalent of an entire shot each time you change.

I actually don't store beans in the hopper. I keep them in airtight containers. I've found that if I weigh out my beans prior to grinding, I get about the same amount out that I put it. It seems that I only lose a max of a gram. Closing the flap on the hopper helps keep the small amount of beans from getting thrown around too much by the burrs. (This process is how I know that you'll have about 20g of beans between the flap on the hopper and the burrs.) Just need the space to keep a scale next to the grinder. Hope this helps!
Reply · Report · Keil B on Dec 16, 2013
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Hi, we were wondering what is the weight of the unit? Thanks!
A shopper on Nov 27, 2014
Best Answer: My Compak K3 Touch Advanced, Model 58X400 Polished Advanced weighs 13.7 pounds.
Reply · Report · Robert S on Dec 9, 2015
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Ok, so our labs compak k3 hasnt been cleaned in a while.. causing the top to be stuck on there after following manuals directions to remove the top burr. What can we do to clean it or release it? I think it is gunked up a bit making it hard to remove. HELP!
A shopper on Feb 22, 2014
Best Answer: You might want to try running Grindz through the grinder to remove some of the oil build up, but if the grinder is severely blocked, it may need to be serviced, unfortunately. Grindz can be found here:
Reply · Report · Teri KStaff on Feb 24, 2014
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I noticed that a model has a timer/knob in the front and one doesn't and I believe one model is 58SB200 and the other is 58SB400, can you explain the difference and which one is better?
G. H on Sep 28, 2015
Best Answer: I have the Model 58X400 Polished Advanced. It has the Timer knob on the front. It has a switch to select Timer or Manual on the lower Left side of the base and an On/Off switch on the lower Right side of the base. A single push of the discharge shoot with the Timer mode selected will nominally deliver a single shot of grinds. A quick double push will deliver a double shot. In Manual mode the grinder will operate as long as the On/Off switch is in the ON position. While researching grinders I read a lot of comments about the poor location of the switch on older models, and that the newer models have the timer knob on the front. I can't answer specifically about the 58SB400 vs. the 58SB200. I have had my 58X400 for just over a year now and I rate it as one the best purchases I have ever made! That's not just coffee grinders or home appliances I'm talking about, dollar for dollar the 58X400 is just EXCELLENT! Good luck with your search for a great grinder.
Reply · Report · Robert S on Dec 9, 2015
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I realize that a variant of that question has already been posed twice: However, could I ask again why exactly the K3 would be less recommended for medium grind (say, V60 filter drip)? I understand that it may be inconvenient to adjust forth and back from espresso to filter. But once it is dialled in for filter, what is the grind quality at medium setting? Fines? Consistency? Taste? I ask mostly because I remain sceptical about Baratza's long-term quality. The metal-built Compak inspires way more confidence.
A shopper on Sep 7, 2016
Best Answer: It's more difficult to adjust the K3 to the perfect espresso grind. You have to be grinding or have the motor turned on to make the adjustment. Also, the dial setting isn't well marked and there isn't a built-in way to determine the setting and there is a one-degree mark of back & forth free play to content with. Also, when the motor is running, it's difficult to hold the desired setting in place.

I mostly do espresso grinds with this grinder and I've even become a bit reluctant to switch beans because of the difficulties in making the adjustment. With that said, once the grind setting has been dialed in, it'ss a superb grinder. But I do sometimes wishI had purchased a Baratza because of its ease of adjustment. I too, didn't purchase the Baratza because I thought the K3 is more durable. I still believe it is.

In regards to the grind setting, you have to determine them for yourself as each grinder is different as is each type of coffee bean roast.
Reply · Report · Douglas R on Sep 19, 2016
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I just got my K-3. I'd like to adjust by number but it's completely unclear where the adjustment point is. i.e. I see the grind numbers but I don't know how to set to to, say, 38. Where do I put the number 38? There's no indicator on the machine as to where a number should line up with. Any idea?
Jordan Z on Nov 13, 2014
Best Answer: Essentially, there is no number scale for this machine. If you hop on youtube and watch dosing guides from Gale, you will see how to dial in your grinder. My advice is take it all the way down to where the burrs touch, bring it back off, and then just go coarser as you proceed. Also, remember.. Each bean is different and will require adjusting as well. Again, there is no way to say "I set mine to 38," -- it is just based off dots, and that is no guide at all. Welcome to the world of stepless.
Reply · Report · Jarrett M on Feb 1, 2015
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A reviewer mentioned a design flaw with the hopper cracking where it meets the machine. He mentioned having to order 4 total in 2 years. Have you noticed this flaw? What if any prevention is there? Has this been remedied in current designs by Compak. If not is it covered under the warranty?
A shopper on Oct 7, 2013
Best Answer: I have been using mine every day for about two years and have had no problem. I did, however apply a one inch wide piece of 3m painters tape along the bottom edge of the hopper to snug up the fit so that it doesn't rattle at all and fits very tight. I only remove it every several months for a good cleaning.
Reply · Report · Tony B on Dec 9, 2015
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I make coffee three ways. Espresso chemical and moka
Does this perform well at medium grinds?
A shopper on Dec 26, 2015
Best Answer: It will certainly give you medium grinds but it's really meant more for espresso. Something like the Baratza Vario would be better suited to your needs
Reply · Report · Michele BStaff on Jan 17, 2016
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Can I hook up my grinder to a really good surge protector? Thanks!
A shopper on Oct 25, 2015
Best Answer: Yes, absolutely
Reply · Report · Michele BStaff on Oct 29, 2015
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I am looking for a high quality grinder for one third espresso and two thirds pour over. Is there a canister or receptacle to collect up to 50 grams of ground coffee?
Tony B on Aug 17, 2014
Best Answer: No, we do not offer a canister to collect coffee that is compatible with the Compak K3, and the step less adjustments of this unit mean that it would be a bit of a hassle to change back and forth from espresso to pour over. A better grinder for your needs would be the Baratza Vario or Baratza Vario W. These units handle espresso to pour over grinding very well, offer stepped grinding adjustments to easily get things dialed in, and the grounds bin holds about 5oz. As an additional feature, the Vario offers a portafilter holder for espresso as well as a grounds bin. The Vario W offers just a grounds bin but also offers a weight base to tare out and then grinds a specific weight into your container. Hope this info helps!
Reply · Report · Teri KStaff on Aug 18, 2014
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1 year reviewReview by Larry
Very easy to adjust grind. The adjustment doesn't drift. The timer is great. I weigh after 1 touch and can quickly calculate how much time to get the weight I want, and it stays consistent (though i always with on case beans didn't feed. Happens more with oily beans. ) Does clump and I do the yogurt container deal. (Posted on 8/1/2017)
dedicated espresso grinder Review by patrick
I've had this grinder for just over 6 months and believe it to be much better than the Rocky grinder... See details here - !
(Posted on 6/12/2016)
K3 RocksReview by Swblee
Prior to K3, I had a Rocky grinder. I wanted a finer adjustment on the grinder. I picked K3 based on the reviews. K3's grind is noticeably more consistent and less clumpy. K3's motor is much quieter. I was happy with my Rocky. However, K3 is definitely a grade above that worth every penny. It makes my Rocket Cellini purrs. (Posted on 8/17/2015)
8 Months In ReviewReview by Daniel
I've had this grinder for 8 months now, and here is what I think so far.

At first this grinder was insanely overwhelming as I'm coming from a Breville single boiler machine with the crappy built in grinder.

For me, I don't ever use the timed dosing.
The most important piece of equipment I've purchased isn't this grinder or the Rocket machine. It's the $20 scale that allows me to weigh my dose, and my extraction.
Every bean grinds different, isn't the same size and especially doesn't weigh the same. So please do not base your dose on the fact that you're filling your basket.

I love the stepless design, with the Rocket machine it really requires the perfect grind.
The difference in grind becomes pretty small once you dial it in, so don't worry about having to adjust it every time you buy different coffee.

One of the downsides is when you're running low on coffee, this grinder seems to become really inconsistent since it doesn't have the weight of all the beans pushing down on them. (This is probably the same story for every grinder) Try and keep that hopper filled as much as you can!

Wish the hopper had a nice air tight cap on it, but it's all good considering the price of the grinder. (Posted on 8/7/2015)
Performs well!Review by gjskandy
The Compak K3 Touch looks great and performs well. At half the price of the Mazzer, it does everything required to provide consistent grind and dosing (timer). I've had practically no waste. This grinder is a great value. Make sure to watch the SeattleCoffeeGear videos on the Compak K3. The manual that comes with the grinder is pitiful. (Posted on 5/15/2014)
Wonderful Wonderful!Review by PEP SLC
I have had a Rocky grinder now for 3 years and have moved that grinder to my office and replaced it with the Compak K3. Well worth the extra money over the Rocky if you have the space - it is a bit bigger. I ordered the polished aluminum version and was a bit hesitate - but am very pleased it looks FANTASTIC!
And beyond looks I love that it has infinite settings - and most of all the auto dosing timer is great. I followed the instructional video online and it is very easy to set up and I get a consistent grind and the exact 7.5 grams or 15 grams with either one touch or two quick touches every time! It is also much quieter than most other grinders. So far a GREAT investment! (Posted on 3/18/2014)
Great Home Espresso Grinder Review by David
I just bought this to replace my trusty Mazzer Mini, a grinder that will outlast us all, however this is quieter, prettier and more convenient with less wasted coffee, for half the price of the Mazzer with electronic dosing. I am very happy with this grinder overall, easy to set up. Manual is very bad as with all espresso equipment I have purchased. (Posted on 2/22/2014)
Great grinderReview by Elliottok
This is a wonderful grinder. Making it even better is the fact that the design has changed - the timer adjustment is now on the front of the grinder instead of underneath the grinder. Makes it a A LOT easier to adjust your timed setting. Seattle Coffee Gear should update their photo/review to show the new design. (Posted on 12/18/2013)
Great grinder poor hopperReview by Greg
I have owned this grinder for over three years. The grinder is easy to maintain, fits well under my counter and does a good job on beans. I have used the Preset doser and after a little calibration works well. The grind adjustment is sensitive and does not have to be moved much to change grind. My only complaint is with the hopper. I have just ordered a fourth new hopper since I purchased the machine. The plastic collar that fits into the grinder fractures after 8 - 12 months. I take excellent care of my equipment and feel this is a definite design flaw and not a user problem. (Posted on 12/1/2012)

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Warranty Information

What it Covers: Compak grinders

Length: 1 Year

Who Supports the Warranty: Seattle Coffee Gear, read more about Seattle Coffee Gear's Warranty coverage

Warranty Contact Information: 866-372-4734 or email at

Eligible for SCG Extended Warranty? No

Can SCG Repair? Yes, read more about our repair services

Care and Maintenance

  • Clean out all parts that come into contact with the coffee grounds at least once a week.
  • To clean the ground coffee holder, first empty all the coffee inside it. Remove the ground coffee dispenser lid and clean the inside, using a small brush.
  • Keep the exterior clean with a damp, soft cloth.

User Manual


How-To: Dialing In A Grinder

Compare: Grinder Noise Levels


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