Mahlkönig Grind Adjustment Tool – K30
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Selected by Anke and Yalcin
4.9Google · 301 reviews · Bern5.0Tripadvisor · 11 reviews · Bern
Selected by Anke and Yalcin
4.9Google · 301 reviews · Bern5.0Tripadvisor · 11 reviews · Bern
The Mahlkönig tool 306590 for the K30 and K30 TWIN espresso grinders. Original spare part, available in Bern and Zurich.
Mahlkönig lists it as Grind Size Adjustment Tool, K30, and describes it as a tool for calibrating the K30 and K30 TWIN.
You will find more tools and spare parts for Mahlkönig grinders under Grinder accessories and spare parts. After calibration, as before, the weight ratio counts for extraction, not the time. For espresso, 1:2 is a good starting point.
| Manufacturer | Mahlkönig |
|---|---|
| Part number | 306590 |
| Manufacturer designation | Grind Size Adjustment Tool, K30 |
| Use | Calibrating the espresso grinder |
| Fits | Mahlkönig K30, K30 TWIN |
For everyone who calibrates their K30 or K30 TWIN themselves. You will find more parts under Grinder accessories and spare parts, and the grinders themselves in our Mahlkönig collection.
A grinder goes with a scale. For affordable, precise scales: Normcore. If you want an app, Bluetooth and a flow-rate display: Acaia. Care products for your grinder are in Machine and grinder cleaning. Our advice tool shows which grinder suits your setup.
Mahlkönig describes it as a tool for calibrating the K30 and K30 TWIN espresso grinders.
For this tool, Mahlkönig lists the K30 and K30 TWIN. Other models have their own tools and spare parts, which you will find under Grinder accessories and spare parts. If you are unsure, send us the model and serial number at [email protected].
You can see Mahlkönig grinders live in our showroom in Zurich Oerlikon (Hagenholzstrasse 50b). Whether the spare part is on site, we are happy to confirm by email in advance at [email protected].
Tip from the roastery: For espresso from the K30 we recommend Cozy Chocolate and Nutty Delight, both dense, round and chocolatey. If you want maximum body without acidity, take Very Nutty. And if you want to discover something fruity, you will find it in Wild Peach. That is our recommendation, one of many.
You order directly through our online shop. If you have questions, we're happy to help — online or in person — with experience from our roastery, cafés and showrooms.
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Reach us directly · [email protected]Who is behind the selection

Anke Wolf
Founder and owner, coaching, team and processes
Swiss federal certificate as adult educator, CAS Coaching in Organisations (FHNW), over 10 years in adult education and coaching. With us she is the host in our cafés, leads and coaches the team, coordinates our processes and looks after our partnerships with foundations.

Yalcin Akpinar
Co-founder, equipment and sensory
Graduate food chemist from the University of Hamburg, over 15 years in the international flavour industry, patents in flavour technology. With us he is responsible for roast profiles, bean selection and the choice of machines and grinders.
What our guests say
“While the coffee is stellar, the plethora of equipment and hospitality of Anke and Yalcin take it to another level.”
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