Why does everything taste like cleaning day?

[Tofu-Tails]

Machine / revision: Profitec GO 2025
Country / voltage: Germany / 230V
Grinder / burrs / setting / calibration: Eureka Mignon Specialita; stock 55 mm flat burrs; about 1.4 turns from burr touch; dial position photographed.
Basket / portafilter: 18–20 g VST-style precision basket; stock portafilter with double spout (58 mm system where applicable).
Bean / roast date: Brazil Cerrado medium roast; roast date 2026-08-13.
Dose / yield / extraction time: 18.0 g in, 36 g out, 28 s target/current reference.
Water / temperature: filtered tap, about 80 ppm hardness; 92°C.
Exact symptom: Unsure which group gasket thickness matches the current machine/revision.
Tests already performed: Measure removed gasket and verify exact machine revision/part listing Already cleaned the obvious removable parts and repeated the test once.
Diagnostic photograph or video: photo of the machine label/revision plus a short symptom clip.

The Profitec GO 2025 is working, so naturally I am trying not to ruin that by over-maintaining it. Here is the exact setup before anyone recommends a universal answer.

[Tofu-Tails]

Confirmed solution: I checked the exact revision and water/part specification, followed the manufacturer-compatible procedure, then flushed and verified normal taste/operation before changing anything else. I am leaving the original numbers above intact so the next person can see what changed.

[Bean-Paste]

The useful documented check is the revision-specific maintenance/service sequence, not a generic espresso-machine video. For Profitec GO 2025, verify the manual procedure and part number before opening or ordering anything. If the documented test does not reproduce the fault, stop treating that subsystem as proven.

[Lentil-Seamstress]

The Eureka Mignon Specialita looks innocent but I have seen this movie before.

[Okra]

Short answer: Start with the simple reproducible test before buying parts.
Applies to which model/revision: Profitec GO 2025.
Likely cause: The symptom points first to a setup, wear-part or calibration issue that can be separated from a major failure.
Test to perform next: Return one variable to a known reference, repeat twice, and record whether the symptom changes in the same direction.
Expected result: If that subsystem is the cause, the symptom should change predictably rather than randomly.
Safety limit: Do not exceed the machine/part manufacturer chemical concentration or improvise acids/solvents around seals and boilers.
Evidence: First-hand owner experience with the same model/configuration; not a manufacturer diagnosis.

[Philip-BlueNotes]

This is a good example of why the exact revision and test history matter. “My Profitec GO 2025 is bad” produces twenty theories; the measurements above at least give the theories somewhere to die.

[Tai Chi Tiffin]

Not the exact revision, but I had a closely related setup with the same general failure mode. The thing that saved time was separating the Eureka Mignon Specialita / puck-prep side from the machine side instead of adjusting both together. Similar experience, not proof for your unit.

[Masala Soil]

Inference only: because the symptom is repeatable and your listed tests already rule out some obvious causes, I would suspect the narrowest remaining mechanical/setup path before a board-level failure. I would not buy a part from that inference alone.

[Tofu Asana]

The useful bit in this thread is that nobody has to guess which Profitec GO 2025 or Eureka Mignon Specialita is involved. Half of repair advice goes bad before that point.

[Paws]

Counterpoint: I would not order parts yet. The symptom still overlaps with a calibration/setup problem, and a new part can make the evidence worse.

[Casefile Yoga]

If you can post the short video mentioned in the opening block, the sound/flow pattern may separate a normal Profitec GO 2025 noise from the fault you are describing.

[Masala Soil]

I had a similar issue but not the same revision. Mine ended up being embarrassingly simple, so I would keep the easy checks alive until the evidence kills them.

[Okra]

please stop posting clean drip trays. Some of us are trying to live honestly

[Bean-Paste]

I would mark the part you changed and photograph the original position before going farther. Future you is an unreliable witness.

[Tai Chi Tiffin]

If you can post the short video mentioned in the opening block, the sound/flow pattern may separate a normal Profitec GO 2025 noise from the fault you are describing.

[Lentil-Seamstress]

If you can post the short video mentioned in the opening block, the sound/flow pattern may separate a normal Profitec GO 2025 noise from the fault you are describing.

[Okra]

One small follow-up: repeat the test from a cold start once. Heat can hide or create a fault, and “it worked five minutes later” is useful information.

[Tofu-Tails]

At this point the Profitec GO 2025 has more accessories than my car.

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