How to Clean Your Grinder (The Easy Way)

Grinders work hard, and over time residue builds up on the teeth and screen. A gunked-up grinder gets stiff to turn, grinds unevenly, and traps kief that should be falling through. The good news: a clean is quick and easy. Here's a simple routine that keeps an aluminum grinder spinning like new.

How often should you clean it?

For most people, a light clean every few weeks and a deeper clean every couple of months is plenty. If the lid is getting hard to turn, that's your cue.

What you'll need

• A soft brush (an old toothbrush works) or the brush that came with your grinder
• Warm water and a little mild dish soap
• Isopropyl (rubbing) alcohol — for the stainless screen
• A freezer (optional but helpful)
• A clean, dry cloth

Step-by-step

1. Harvest your kief first. Scrape out the bottom chamber so you don't wash any away.
2. Disassemble fully. Separate all the pieces — lid, grinding chamber, collection chamber, and screen if removable.
3. Freeze for 30 minutes (optional). Chilling makes sticky residue brittle, so it brushes off far more easily.
4. Brush it out. Tap and brush away the loosened residue from the teeth and chambers.
5. Wash the aluminum. Clean the aluminum parts with warm water and mild dish soap, then rinse. Avoid long alcohol soaks on anodized or colored aluminum — they can dull the finish over time.
6. Soak the screen. The stainless steel screen is the one part that loves a short isopropyl alcohol soak. Let it sit a few minutes, agitate, then rinse with warm water.
7. Dry completely. Pat everything dry and let it air-dry fully before reassembling — trapped moisture is the enemy.

Keep it cleaner, longer

• Brush after grinds. A quick brush now and then prevents big buildups.
• Don't overfill. Packed chambers leave more residue and strain the teeth — see how to use a 4-piece grinder.
• Grind dry material. Properly dried herb is less sticky and far kinder to your screen.
• Buy quality once. Aircraft-grade aluminum and a removable stainless screen — like the Zenith — clean up easily and hold up for years.

Ten minutes every few weeks is all it takes. A clean grinder turns smoother, grinds more evenly, and sifts more kief — so this little habit pays you back every single time.