[KimmyDe]

What's the best way to clean a Gaggia MDF doser grinder... without having to unscrew anything?!
Use a brush??? What size/ type?

[Austin]

Grinder? I'm going to say just brush it out or used canned air. I find grinders and water are not friends.

[RichHelms]

Use Grindz™ Retail Grinder Cleaner. Very popular.

Grindz™ Retail Grinder Cleaner is a portion-packaged version of our patent-pending innovation. The product is an all-natural, safe, and easy way to keep your grinder fresh and clean. Grindz™ Retail quickly and effectively removes stale coffee residue and flavored coffee odors from the internal burrs and casings of coffee grinders. Requiring no grinder disassembly, users simply run the coffee bean shaped tablets through the machine just like coffee.

http://www.sweetmarias.com/urnex.grindzFAQ.html
Details on using it

[Austin]

Good link Rich!

[KimmyDe]

Hey, I had just read about Grindz the other day on Home Barista. I'll be checking it out soon. There have also been further suggestions for the use of Minute Rice (as opposed to regular rice, which is harder). I'll probably try the Grindz first though!

[Austin]

Do you have link to the rice thread?

[KimmyDe]

Originally Posted by Austin

Do you have link to the rice thread?

Here are the links to the Minute Rice vs Grindz threads on HB

Minute Rice to clean a grinder
(shorter thread)

Urnex Grindz Espresso Grinder Cleaner (before/after photos)
(longer thread)

[Austin]

Thank you much!

[Spyder]

I wouldn't waste the money on things such as Grindz... Simply take the grinder apart and use a little elbow grease for a proper cleaning. A simple brush and vacuum cleaner can have it looking close to new. Wipe interior surfaces down with a soft/dry cloth and assemble it.