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Brew guide Buying guide Cleaning and maintenance Startup guide Coffee guide

kat:underhall

Oct 4, 2026

kat:underhall / kat:vatten / p:BREW

Cleaning and descaling your coffee brewer
Cleaning the brew basket and carafe, descaling the Fellow Aiden and xBloom Studio, water and troubleshooting.

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Oct 4, 2026

kat:mekaniskt / kat:underhall / p:G-COMM / p:G-GBW / p:KVARN

Commercial grinder: care, timer and service
Daily routine, timer setting, overheating, burr replacement by kg and service for commercial grinders.

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Oct 4, 2026

kat:elektriskt / kat:underhall / p:G-GBW / p:KVARN

Grinder with a scale: calibration and troubleshooting
How grind-by-weight works, how to calibrate the scale in Eureka and Baratza grinders, and what to do when the weight is wrong.

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Oct 4, 2026

kat:start / kat:underhall / p:G-CON-SD / p:G-FLAT-SD / p:KVARN

Single dosing and retention
How to grind one dose at a time, reduce retention with bellows and RDT, and deal with static.

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Oct 4, 2026

kat:mekaniskt / kat:underhall / p:G-COMM / p:G-CON / p:G-CON-SD / p:G-FLAT / p:G-FLAT-SD / p:G-GBW / p:KVARN

Replacing the burrs on your grinder: when and how
Signs of worn burrs, manufacturers’ replacement intervals, replacing flat and conical burrs, and running in.

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Oct 4, 2026

kat:underhall / p:G-COMM / p:G-CON / p:G-CON-SD / p:G-FLAT / p:G-FLAT-SD / p:G-GBW / p:KVARN

Cleaning your coffee grinder: daily, with pellets and inside
How to clean your grinder with a brush, bellows and cleaning pellets, and when to open it up and clean the burrs.

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Oct 4, 2026

kat:underhall / kat:vatten / p:COMM

Commercial espresso machine: daily cleaning and service
Closing routine, backflushing per group, steam wands, drain, weekly routine and when to call a technician.

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Oct 4, 2026

kat:lackor / kat:mekaniskt / kat:underhall / p:LEVER

Lever machines: care, gaskets and safety
Daily care, gaskets, lubrication and safe handling of spring lever and manual lever machines.

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Oct 4, 2026

kat:underhall / kat:vatten / p:TB

Thermoblock: care and descaling
How a thermoblock works, why descaling matters and how to descale and clean it step by step.

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Oct 4, 2026

kat:underhall / kat:vatten / p:SAGE

Sage: cleaning, descaling and water filters
Cleaning cycle, descaling programme, replacing the Claris filter and cleaning the steam wand and shower screen on Sage machines.

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Oct 3, 2026

kat:underhall / kat:vatten / p:MASKIN

Water, water filters and descaling
The right water hardness, when you need a filter, when to descale and when not to, and how to change the boiler water.

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Oct 3, 2026

kat:flode / kat:lackor / kat:ljud / kat:mekaniskt / kat:underhall / p:COMM / p:DB / p:E61-DB / p:E61-HX / p:HX / p:SB

Steam and hot water valves: maintenance, leaks and stiff knobs
Why the steam wand drips, why the knob becomes stiff and what to do when the steam is weak.

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