title_body: How should I clean my burr grinder?
upvoted_answer: There are two options.
  
  
  Get yourself some grinder cleaner (Grindz, Urnex and probably other brands), that you just grind through. You can buy it online. It cleans the burrs, removes oils and other residues. Afterwards you need to grind some beans so that you don't have the cleaner in your cup of joe. This is a rather convenient way to clean your grinder, however definitely more costly and wasteful than the second option.
  Disassemble your grinder according to the instructions provided by Hario and use any kind of brush (toothbrush, pipe cleaner, as long as the bristles are reasonably rigid anything works) to clean the burrs. All the other parts you could also wash with a mild detergent.
  
  
  That's it, it's easy and should be done once every other month in my opinion. I suggest brushing the burrs and rinsing the rest. It's easy, quick and clean enough.