What do you need to clean a grinder?
You need a soft brush, a pick, a sealable bag or jar, warm soapy water and a towel, plus 90%+ isopropyl alcohol for a deep clean.
- A soft dry brush (an old toothbrush works)
- A cocktail stick or plastic pick
- Isopropyl alcohol (90% or higher) for a deep clean
- A sealable bag or jar big enough for the parts
- Warm water, washing-up liquid and a clean towel
How do I do a quick weekly grinder clean?
Freeze the pieces for about 30 minutes, then brush the residue off the teeth, walls and screen.
- Take the grinder apart into each piece.
- Put the pieces in the freezer for about 30 minutes.
- Brush the teeth, walls and screen over a sheet of paper or your tray.
- Use the pick to loosen anything stuck between the teeth.
- Reassemble and give it a few turns.
How do I deep clean a metal grinder?
Soak the metal parts in isopropyl alcohol for 20 to 30 minutes, scrub them, rinse with warm soapy water and dry them completely.
Do this when the lid sticks or the screen is clogged.
- Separate every piece. Remove any loose screen or magnet if your model allows it.
- Place the parts in the bag or jar and cover them with isopropyl alcohol.
- Seal, shake gently and leave to soak for 20–30 minutes.
- Scrub each piece with the brush, paying attention to the screen and threads.
- Rinse well with warm water and a drop of washing-up liquid.
- Dry every piece completely on a towel before putting it back together.
How do I stop my grinder lid sticking?
Dry every part fully and don't overtighten the lid, because trapped moisture makes the threads grab.
Always let parts dry fully, as trapped moisture makes threads grab. Wipe the threads with a dry cloth after each deep clean and avoid overtightening the lid. If the screen tears, replace the grinder rather than forcing it.
Safety
Isopropyl alcohol is flammable. Use it in a ventilated room, away from flames and heat, and keep it away from children. Don't use it on wood, acrylic or painted finishes.