Compak PK100 Single Dose: one grinder for changing coffees and brew methods
The Compak PK100 Single Dose is built around weighing beans before grinding, rather than leaving one coffee in a large hopper. Its 98mm blind flat burrs and broad adjustment range make it relevant to espresso, filter brewing and tasting work where the coffee or brew method changes often.
The front micrometric dial makes the setting visible and easy to record. Compak describes a range from Turkish coffee through espresso and filter to French press. Each brew method still needs its own recipe and calibration; a broad range does not make one setting suitable for everything.
Understand the dial and the grinding path
The PK100’s scale is a mechanical grind-setting reference. A number on the dial is not a measurement of every particle coming out of the burrs, and it is not a laboratory particle-size result. Record useful settings, then verify them with the coffee and recipe you are using.
Low retention needs a consistent routine
The outlet, knocker and grind path are designed to help move coffee through the grinder. Low retention is not zero retention. Weigh the input and output when establishing your routine, and allow for a purge after a substantial setting or coffee change. Two cooling fans and a cast-aluminum body are part of the PK platform.
Specifications at a glance
| Feature | Specification |
|---|---|
| Burrs | 98mm K110 steel blind flat burrs |
| Adjustment | Front stepless micrometric dial |
| Intake | Single-dose / cupping hopper |
| Brew range | Turkish, espresso, moka, filter and French press |
| Outlet features | Adjustable outlet, bag clip and knocker |
| Body / cooling | Cast aluminum; double ventilation |
| Dimensions, W × D × H | 252 × 328 × 622 mm / 9.92 × 12.91 × 24.49 in |
Manufacturer documents span different regional and hardware revisions. Hopper capacity, motor ratings and RPM should be matched to the supplied unit; a global 900rpm figure is not a universal U.S. specification.
Which Compak fits your workflow?
| Model | What changes | Choose it when |
|---|---|---|
| PK100 Single Dose | Single-dose intake; 622mm published height | You weigh a portion and change coffees frequently. |
| PK100 Shop | Larger hopper; 690mm current published height | Bag grinding and a larger intake suit the counter. |
| E8 OD LLS | 83mm burrs; timed portafilter workflow | Most orders use one house espresso and programmed doses. |
Frequently asked questions
What is the difference between the PK100 Shop and Single Dose?
Both use the PK100’s 98mm burr platform and broad grind range. The main buying distinction is intake and workflow: a single-dose / cupping hopper versus the larger Shop hopper. Current published overall heights are 622mm and 690mm respectively.
Can it grind both espresso and filter coffee?
Yes. Compak lists a range from Turkish through French press. Save a starting setting for each method, purge as needed after a large adjustment, and fine-tune using the actual brew result.
Does a dial setting of 400 mean all grounds are 400 microns?
No. The dial is an adjustment reference. Coffee grounds have a distribution of particle sizes; a setting is not a measurement of that distribution.
Is it a zero-retention grinder?
Compak positions the PK100 around low retention. Some coffee can remain in the grinding path, so use a consistent outlet-clearing routine and check input versus output rather than expecting an unconditional zero.
Can I switch between decaf and regular coffee?
The broad workflow permits changing beans, but carryover is still possible. Clean and purge appropriately; use dedicated equipment where strict separation is important.
Is the motor speed variable?
The PK100 is not presented as a user-variable-speed grinder. The family manual lists different fixed speeds by electrical version, including 1,100rpm at 110V/60Hz and 900rpm at 230V/50Hz. Use the specification for the supplied unit.
Will it fit under a kitchen cabinet?
Measure carefully. The current published height is about 24.49 inches for the Single Dose, before allowing room to add beans and use the controls. Its 252 × 328mm base is only part of the space required.
Can I replace the hopper to convert between versions?
Do not assume that every hopper, fitting or revision is interchangeable. Confirm the exact part against the model and serial number before planning a conversion.