Cleaning and Calibrating Handground

Step by step guide for cleaning your coffee grinder and a walkthrough of the advanced calibration process.

Caring for your coffee grinder

We recommend cleaning your grind at least once per month. Coffee contains natural oils that can build up on the burr and inside the grinder over time. Coffee dust then sticks to the oils and if not removed will oxidize and produce undesirable flavors that may mix in with your fresh ground coffee beans.

Handground is not dishwasher safe but the cleaning process is very simple and does not require any tools.

Sections on this page:
Clean the ceramic burr mill and hopper
Restore grip pad stickiness
Advanced calibration procedure and hopper replacement

Cleaning the Ceramic Burr Mill and hopper

Step 1: Unscrew the thumb nut

The inner burr mill is held on by a thumb nut at the base of the burr. Make sure the top cap is locked on and hold the handle in place with your left hand as shown in the picture above. If you do not hold the handle, it will start to spin as you turn the thumb nut.

Turn the thumb nut counterclockwise to unscrew it. If it is too tight to unscrew with your fingers you can also use a wrench or pair of pliers.

Step 2: Remove the inner burr

The inner burr is free to slide off the axle once the thumb nut is removed. Lower the burr by turning to grind size setting 8 and then grip the base of the inner burr and pull. It may help to gently wiggle as you pull.

Step 3: Keep an eye on the burr inserts

The inner burr has two plastic inserts that help it self level when the thumb nut is tightened (pictured above). They fit into the top and bottom of the burr and may fall out when the burr is removed.

If the inserts come loose just set them aside while you clean the burr and make sure to put them back in after cleaning. If the inserts are firmly in place, continue the cleaning process with them in the burr. Just keep an eye on them so that one doesn't slip down the drain!

Step 4: Take off the top cap

With the inner burr removed we can now take off the top cap by turning clockwise. Remember, right to release.

Step 5: Wipe down the top cap, DO NOT wash with water!

The top cap houses a gearbox that will wear down if put in contact with water. Use a soft cloth to clean the top cap and handle but do not wash it with water directly or put in the dishwasher.

Step 6: Use a brush to clean the inner burr

An old toothbrush works well for cleaning coffee oil and residue off the burr. Use warm water and brush the between the fine grooves, or "teeth" of the burr.

Step 7: Brush the outer burr and wash the hopper

The same process can be used with the toothbrush to clean the outer burr while it is mounted. There is no need to remove the 3 screws on the bottom of the grinder to clean the grinder. The hopper and rings are safe to hand wash but do not put it into the dishwasher.

Step 8: Dry with a soft towel

The last step is to dry inside and outside the hopper with a soft towel.

Cleaning the Grip Pad and Glass Catcher

When does the grip pad need to be cleaned?

Dust and coffee particles may build up on the grip pad over time and cause it to lose some of its tackiness. The good news is restoring the grip pad back to new just takes a warm wash!

Step 1: pull the grip pad off the bottom of the catcher

Peel up the edge of the pad and pull it from the bottom of the catcher. There is no glue or adhesive holding the pad onto the glass.

Step 2: Wash the grip pad with warm water

All it takes to restore the grip pad back to new is a warm bath. Use your fingers or a brush to gently rub all the dust off and if it's extra dirty you can use soap.

Step 3: Wash the glass catcher inside and out

This step is optional but we recommend to wash any old coffee oils and residue out of the glass catcher. Make sure to give the bottom a scrub too so that the grip pad has a clean surface to stick to!

Once you are done washing the glass catcher you can dry it off with a towel.

Step 4: Let the grip pad air dry to restore Tackiness

Let the grip pad air dry before applying it back to the base of the glass catcher. We suggest placing the pad on top of the catcher to let dry on both sides. The pad will not stick while it is wet, and if you try to dry it with a towel it may pick up fibers from the towel.

All clean and ready to grind

Advanced Calibration Process and Hopper Replacement

What's covered in the video?

• How to check the base calibration of your grinder
• Add or remove calibration washers
• Replace the hopper
• Remove the outer burr mill
• Full disassembly of the body and adjustment rings