Keeping Your Burr Grinder Sharp and Clean
Coffee oils are the enemy of consistent grind quality. Over time, these oils turn rancid, coating your burrs in a sticky film that traps old coffee dust and ruins the taste of every batch that follows.
Consistency starts with maintenance
Clear your counter space and make sure the machine is completely unplugged before you touch the burrs. Do not use water on any part of the internal grinding chamber.
- Stiff-bristled brush
- Handheld vacuum or air puffer
- Microfiber cloth
- Screwdriver (if needed for hopper removal)
What goes in.
- 1/4 cupUrnex Grindz or similar food-safe cleaning pellets
Clear the static
Use a handheld vacuum or compressed air to pull fine, compacted dust out of the threading and adjustment collar; if you ignore this, the buildup will eventually seize your grind settings.
The method.
Empty the hopper
Remove all beans and run the motor until no more grounds fall out. Unplug the machine completely.
Clean with pellets
Run the cleaning pellets through the grinder on a medium setting. Follow immediately by grinding 20 grams of cheap coffee to purge any lingering pellet residue.
Access the burrs
Remove the hopper and the top burr carrier according to your manufacturer's manual. Most twist counter-clockwise until they lift free.
Brush the burrs
Use your stiff-bristled brush to aggressively scrub the edges of both burrs. Work from the center outward to push dust out of the teeth.
Wipe and reassemble
Wipe the surrounding housing with a dry microfiber cloth. Reinstall the burr carrier, ensuring it sits flush, and lock the hopper back into position.
When it doesn't go to plan.
Never use water or soap inside the grinding chamber; it will cause the burrs to rust and the internal components to seize.
Keep a dedicated soft brush near the machine to clear the exit chute of loose grounds after every daily use.
If your grinder has a static problem, try using a single drop of water on your beans in the hopper before grinding to weigh down the chaff.
The ones that keep coming up.
How often should I deep clean?
If you brew daily, a full disassembly and deep clean every three months is sufficient.
Do I need to recalibrate after cleaning?
Yes. Anytime you remove the top burr, the zero point may shift slightly; run a few beans through to check for burr rub and adjust accordingly.
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