Mahlkönig Pre-Breaker 71 mm – Guatemala
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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 pre-breaker 703537, 71 mm, for the Guatemala (71 mm), Guatemala 2.0 and K32 shop grinders. Original spare part, available in Bern and Zürich.
Mahlkönig lists it as Pre-Breaker 71 mm, Guatemala, with the former part number 300073. For the Guatemala with 65 mm burrs there is a separate pre-breaker.
| Manufacturer | Mahlkönig |
|---|---|
| Part number | 703537 |
| Former part number | 300073 |
| Manufacturer designation | Pre-Breaker 71 mm, Guatemala |
| Diameter | 71 mm |
| Fits | Mahlkönig Guatemala (71 mm), Guatemala 2.0, K32 |
For anyone who wants to replace the pre-breaker on their Guatemala with 71 mm burrs, their Guatemala 2.0 or their K32. More parts are in Grinder Accessories and Spare Parts, the grinders themselves in our Mahlkönig Collection. Delivery throughout Switzerland and to Liechtenstein in 2–4 working days.
Grinding by weight goes with a scale. For anyone who wants an affordable, precise scale: Normcore. If you want an app, Bluetooth and flow-rate display: Acaia. Suitable products for grinder care are in Machine and Grinder Cleaning. Our advice tool shows which grinder suits your setup.
It fits the Guatemala with 71 mm burrs and the Guatemala 2.0, as well as the K32. For the Guatemala with 65 mm, Mahlkönig lists a separate pre-breaker. If you are unsure, send us your model and serial number at [email protected].
Mahlkönig now lists it under 703537. Older documents give the former part number 300073.
You can see Mahlkönig grinders live in our showroom in Zürich Oerlikon (Hagenholzstrasse 50b). We are happy to confirm by email whether the spare part is on site: [email protected].
Tip from the roastery: The pre-breaker cracks the bean before it reaches the burrs. What ends up in the cup after that is decided by the bean. For dense, round cups with chocolate and nut we roast Cozy Chocolate and Nutty Delight. If you are looking for maximum body without acidity, reach for Very Nutty, and for a fruity discovery there is 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.”
„Toller Show-Room! Danke Kati für das supernette Gespräch und die gute Beratung!“