How to Clean the Turin SD40 and SD40S Burr Chamber and Chute

Unplug the grinder and clean its internal coffee path dry. Water, spray cleaner, or a wet brush can reach the steel burrs, board, and motor.

Routine cleaning

  1. Run the grinder empty and use the bellows to expel loose grounds.
  2. Unplug it.
  3. Remove the hopper and wipe it separately.
  4. Brush the chute, dosing-cup area, and accessible collar surfaces.
  5. Photograph the dial position and every disassembly stage.
  6. Remove collar
  7. Keep screws, springs, spacers, and carriers.
  8. Brush the 40mm conical burrs and chamber
  9. Coffee can compact behind the declumper and inside the exit chute. Clear residue gently; bending or trimming the declumper changes its behavior. Replace a worn component only with a confirmed-compatible part.

Oily roasts and fine espresso grinding usually require more frequent cleaning. A slowing output stream, rising retention, stale odor, or clumps at the chute are useful warning signs.

Test after reassembly

Return to a coarse setting, rotate or inspect the burr movement, and run the empty grinder briefly. Stop for repeating metal contact, wobble, or a stuck collar. Adjust finer until you find the zero point where burrs are just barely touching.

Re-dial in your coffee from the brewed result rather than assuming the old number is unchanged.