Coffee Grinder Specialists

Mazzer Grinders - Service & Repairs

Mazzer is one of the world's most popular grinder brands, used by independent coffee shops and global chains alike. Founded in Venice, Italy in 1948, Mazzer has been making grinders ever since, and most baristas will have used a Super Jolly or Robur at some point in their career.

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Mazzer grinder engineers

Mazzer's range covers flat burr grinders like the Super Jolly and Major S, the conical burr Robur, and the precision ZM. As an authorised and accredited Mazzer service partner, we have specialist training, access to genuine, original parts and direct after-sales support from Mazzer across the full range.

Coffee Tech UK install, repair and service coffee equipment for leading coffee shops and roasters across London, the South and South West. Our field engineers visit customers on site across our regions, and our workshops in London and Bristol handle full services, rebuilds and customisations.

Our engineers can diagnose most issues over email or phone ahead of a site visit, so we arrive with the right parts and ready to make a quick repair.

If you have an issue with your Mazzer grinder and need technical support, whether that's a breakdown callout or burr replacement, get in touch today.

  • Experienced Mazzer trained engineers
  • Access to genuine, original Mazzer parts and burrs/blades
  • Direct aftersales support from Mazzer
  • Burr chamber clogging diagnosis and cleaning
  • Regional coffee engineers

Get in touch

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Mazzer Grinder Range

Models we work on

We work across Mazzer's range, from the Super Jolly and Major S through to the Robur and the precision ZM.

  • Super Jolly

    Mazzer's most recognisable model, a dependable flat burr grinder for light-to-medium service.

  • Major S

    A step up in burr size and speed, an on-demand flat burr grinder built for busy, high-volume service.

  • Robur

    Mazzer's conical burr workhorse, made for fast, consistent grinding in the busiest espresso bars.

  • ZM

    Mazzer's precision grinder, built for filter and single-dose brewing with fine, repeatable adjustment.

Common questions

Common questions about Mazzer servicing

How often should a Mazzer grinder be serviced?

At least once a year for commercial grinders, with high-volume sites benefiting from more frequent burr checks. Burr wear happens gradually, so regular inspection is the best way to catch it before grind quality starts to suffer.

Why does my Mazzer grinder keep clogging up?

It's usually down to insufficient cleaning, which allows old, oily coffee grounds to build up and cause a blockage. It can also be a sign of worn, dull burrs. When burrs lose their sharpness, they generate excess heat during grinding, and that heat causes the coffee to become oily, which leads to the same clogging. We can clear the blockage, advise on the regular cleaning and care your equipment needs, and diagnose and replace any worn parts where necessary.

How do I know when my Mazzer burrs need replacing?

Signs include needing to adjust the grind finer over time to maintain the same extraction, inconsistent shot timing, or a noticeable change in taste. We can check burr wear during a service and advise honestly on whether replacement is needed yet.

Are you an authorised Mazzer service partner?

Yes. We're an authorised and accredited Mazzer service partner, with specialist training, access to genuine, original parts and direct after-sales support from Mazzer, alongside engineers based across London, the South and South West, and workshops in London and Bristol.

Coffee Tech UK have transformed and streamlined our growing multi-site coffee brand. Before Coffee Tech, we struggled with the reliability of independent engineers. Routine inspections, prompt and professional emergency callouts, and clear, transparent pricing have let us strengthen our operations and build a long-standing partnership.

Wilson & Bay Coffee
Where we work

Mazzer servicing across London, South & Wales

Coffee Tech UK covers Mazzer servicing, repairs and installations across London, the South East, South West and South Wales, with regionally based engineers and two workshops providing full servicing support.

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Book your Mazzer service

Get in touch to arrange a visit. We cover Mazzer servicing, repairs and maintenance across London, the South East, South West and South Wales.