Home » Compak K3 Grinder Review: Can It Beat Other Pro Grinders?

Compak k3 Grinder Review: Can It Beat Other Pro Grinders? 

We’re pretty crazy for espresso here at Home Brews Coffee, which means we take coffee grinders very seriously. An exceptional grinder is just as important when preparing espresso as a top-notch espresso machine. 

Today, we’ll look at the Compak K3 Touch Advanced grinder. Is it worth the splurge? Keep reading to find out.

Summary: The Compak K3 Coffee Grinder

Compak Grinder

  • Prosumer-level coffee grinder designed for espresso
  • High-quality 58mm flat steel burrs
  • 10-ounce hopper capacity
  • Quiet, fast, and uniform grind

Took me a couple of shots to configure the grind fineness, but it is so efficient and works well.

– Scott W

Where To Buy The Compak Grinder

The Compak K3 is a popular espresso grinder available from a number of trusted dealers. You can shop around for sale pricing, shipping options, and the best customer service. We’ve happily worked with all of these companies.

Dealers Details
logo of chris coffee Chris coffee
  • Finance Available
  • Easy Returns
  • Free Shipping
Logo image of 1st in coffee 1st in coffee
  • Lowest Price Guarantee
  • 1 Year Warranty
  • Free Shipping
Majesty coffee company logo Majesty coffee
  • Price Match Guarantee
  • Free Shipping
  • 1 Year Warranty

The Full Compak Coffee Grinder Review

We’ve reviewed many prosumer-level coffee bean grinders, and Compak’s portfolio of professional and high-quality coffee grinders is among the best. From their smooth silhouettes to their intuitive, easy-to-use interface, Compak has collaborated with some of the world’s most prestigious designers to create and bring to market coffee grinders that are sleek, functional, and produces great grind quality. Compak grinders remove the hassle and mess that can go along with grinding fresh coffee beans for our morning espresso.

Keep reading for Home Brews Coffee’ in-depth look at Compak’s K3 Touch Advanced to see if it is the right fit for you.

How We Rated It

  • Design









  • Durability









  • Ease of Use









  • Grinding Capability









  • Value for Money









4.1









Compak Grinder

  • See on Chris Coffee

Who Is Compak?

Compak is a premium coffee grinder manufacturer founded by Jesus Ascaso in 1952 (1). After spending a few years as a serial entrepreneur and working with experts in the coffee world, he decided to forge his own path and create Compak coffee grinders, a coffee grinder company wholly dedicated to hand-crafting premium equipment. 

Design – 4/5

The Compak K3 Touch Advanced adopts the same curved silhouette that Compak is well-known for. 

Available in white or black, the sleek outline and silver accents mesh well with almost any kitchen decor.

It has a compact footprint, which takes up just 6.5” by 12” of counter space, but it is fairly tall at 19”. So there is no guarantee it will slide easily under your upper cupboards.

At the top of the unit, the bean hopper sits just above the stepless grind adjustment dial. You can grind directly into a portafilter thanks to the adjustable portafilter holder, so grinding for espresso is an ergonomic, hands-off experience.

Durability – 4.5/5

The K3 Touch Advance is built to last, making it suitable for home use and the rigors of a commercial environment. It’s no wonder you’ll find this grinder in prominent coffee houses. It weighs a hefty 17 pounds, a clear indication of the quality of the components within.

The 58-millimeter tempered flat steel burrs are treated with a pre-wear treatment to keep your burrs grinding consistently over the long run.

Ease of Use – 4.5/5

The K3 Touch Advanced doserless grinder couldn’t be easier to use. The stepless adjustment dial is clearly marked, providing limitless options for dialing in your espresso. 

Grinding coffee is as simple as choosing between manual and automatic modes. In manual mode, the K3 dispenses coffee into the portafilter as long as it’s pressing against the lever. In automatic mode, the K3 grinds for a set time – typically programmed for a single shot – then stops independently. If you need a double dose, tapping the lever twice will get you twice the amount.

The hands-free coffee-grinding was a nice perk once the timing was dialed, really improving workflow and efficiency.

We found that Compak’s estimate of 7 grams per 1.5 seconds was fairly accurate.

Grinding Capability – 4/5

The K3 espresso grinder sports high-quality 58-millimeter steel burrs and a 210-Watt motor that can churn out a 20-gram dose in less than five seconds – fast enough for use in a small cafe or coffee cart. But if you’re looking for more power, consider the Compak E5 instead; it has a 650-Watt motor.

The K3 performed very well in terms of grind uniformity. We didn’t notice too many fines or boulders in our puck, a crucial parameter when preparing espresso (2).

The optimum brew time for a single shot of espresso is somewhere between 20 and 30 seconds, so you don’t have much margin for error.

Even when we pulled 10 double shots in a row, the Compak grinder performed flawlessly. A built-in fan kept the system from overheating, the grind adjustment remained consistent, and we had very little static build-up.

The Compak K3 espresso grinder is designed so that the grounds drop straight down. Gravity is your friend, ensuring less waste and mess.

To see how Compak compares to other similar grinders, check the table below.

Reviewed item

Compak K3

Caedo E37S

Eureka Atom 75

Baratza Sette 270

Mahlkonig X54

Manufacturer

Compak

Caedo

Eureka

Baratza

Mahlkonig

Model

K3

E37S

Atom 75

Sette 270

X54

Product category

Prosumer grinder

Prosumer grinder

Prosumer grinder

Prosumer grinder

Prosumer grinder

Housing material

Aluminum, Stainless steel

Plastic

Plastic

Plastic

Plastic

Color options

Black, white, polished aluminum

Black, white

Black, chrome, white

Black

Black, white, polished aluminum

User interface

Touch and push knobs

Touchscreen

Touchscreen

Screen with buttons

Knob

Burr type

Steel flat burr

Steel flat burr

Steel flat burr

Steel conical burr

Steel flat burr

Burr size

58mm

88mm

75mm

40mm

54mm

Grinding output

7g per 1.5s

5 g/s

4 g/s

3.5-5 g/s

1-2.8 g/s

Number of dose settings

2

3

2

Automatic

No

Stepless grind adjustment

Yes

Yes

Yes

No (39 grind settings)

Mix of 35 steps and a stepless movement between

Motor speed

1640 RPM

1400 RPM

1400 RPM

450RPM

1050RPM

Hopper size

28 oz

21oz / 56oz (upgraded)

10 oz

10 oz

80 fl oz

Easy to clean

Yes

Yes

Yes

Yes

Yes

Programmable

Yes

Yes

Yes

Yes

Yes

Loudness

Somewhat

Quiet

Quiet

Loud

Quiet

Weight

192 oz / 5.5 kg

432 oz / 12.2 kg

320 oz / 9 kg

144 oz / 4 kg

288 oz / 8 kg

Dimensions

19.5 x 6.7 x 14.37 inches

17 x 8.3 x 12.2 inches

10.5 x 7.2 x 17.25 inches

5.25 x 9.5 x 15.75 inches

20 x 13.5 x 10 inches

Warranty

1 year

3 years

1 year

1 year

1 year

Price

$697.2

$1785

$1399

$399.95

$599-649

Edit Table

Related: Mahlkonig vs Compak: Which Makes Better Grinders?

Value for Money – 3.5/5

The price of the K3 is reasonable for an espresso grinder. Most prosumer grinders at this level fall in the $500 to $1000 range. The uniformity of the grind, ease of use, consistency, and quality justify the cost. However, we’d expect to see larger Compak grinder burrs at this price point. For example, it is comparable in cost to the Eureka Mignon Specialita, which has 65 mm burrs.

What We Liked:

  • Durable and high-quality components
  • Easy-to-use, intuitive design
  • Fast and quiet grinding
  • Mess-free and ergonomic workflow
  • Can do timed dosing or continuous dosing

What We Didn’t Like:

  • Small burr set for the price
  • Tall

Do not Buy the Compak Grinder If:

  • You prefer conical burrs: The Niche Zero grinder is a great conical burr grinder at a similar price point. It’s one of our favorite single-dose coffee grinders, featuring 63 mm burrs, a stepless grind adjustment, and a unique design to minimize grind retention.
  • You’re looking for a no-frills coffee grinder: The DF64 grinder is a minimalist, single-dose coffee grinder with an exceptional 64 mm set of flat, steel burrs. If you want uniformly ground coffee without any fancy features, the DF64 is an excellent choice.
  • You need a commercial coffee grinder: The K3 is suitable for light-duty commercial use but won’t keep up in a busy cafe. Turn to higher-end Compak grinders for coffee shop use, like the Compak K6 or Compak K10.

The Verdict

The Compak K3 Touch grinder is a solid choice for anyone ready to take their espresso to the next level. With a beautifullyl sleek design, curved silhouette, professional-grade flat burrs, and easy-to-use interface, the K3 delivers coffee grounds suitable for cafe-quality espresso.

Compak K3 Grinder

see on chris coffee

  1. Compak. (2023). DNA. Retrieved from https://www.compakgrinders.com/en/dna-company
  2. Grant, T. (2021, May 17). Grinding for espresso at home. Retrieved from https://perfectdailygrind.com/2021/05/grinding-for-espresso-at-home/

Iris M. Pang
Iris M. Pang is a seasoned coffee recipe developer based in Denver. She loves specialty coffee and the diverse culinary treasures from around the world.

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