How to Clean Salt and Pepper Grinders | Empty, Brush, Dry

Clean salt and pepper grinders by emptying them, dry-brushing the mechanism, and wiping the exterior—never submerging the body in water.

Cleaning a salt or pepper grinder properly is mostly about what you avoid doing. The fastest way to ruin a good grinder is soaking it in water, which rusts the burrs and leaves you with a jammed mechanism. Whether you own a manual mill or an electric model, the safe cleaning routine comes down to emptying the chamber, brushing out the grinding burrs, and wiping the exterior with a barely damp cloth.

Why Water Is the Enemy of Most Grinders

Salt and pepper grinders contain metal or ceramic burrs that corrode, rust, or seize up when moisture gets trapped inside. The QVC user manual for electric salt and pepper grinders warns users to keep the motor housing dry and to wash only the removable spice compartment in warm, soapy water before drying it completely. The same warning appears across the care instructions Wirecutter reviewed for pepper mills: immersion is the fastest way to wreck the internal mechanism.

The exception is a grinder built with a fully removable, dishwasher-safe grinding chamber. When the manufacturer explicitly allows it, those food-contact parts can be washed. For everything else, dry cleaning is the honest answer.

Step-by-Step: Manual Salt and Pepper Grinders

Manual mills are simpler to care for because there’s no motor to protect. The routine takes about five minutes and requires no water on the mechanism itself. Start by emptying any remaining salt or pepper from the top chamber—tap the grinder over the sink to dislodge what’s left. Then remove the top knob and set the coarseness dial to its widest setting so the burrs open fully.

Use a dry pastry brush or an old toothbrush to sweep out the grinding burrs and the inner threads. This is where old, caked spice gets trapped and where most jams begin. Wipe the exterior with a slightly damp cloth, never letting moisture reach the open grinding chamber. Let every part air-dry completely before you refill and reassemble.

What the finished job looks like: the burrs are free of caked residue, the exterior is clean, and the mill twists smoothly with no gritty resistance.

Step-by-Step: Electric Salt and Pepper Grinders

Electric models need the same cleaning logic plus one extra step: disconnect the power first. Remove the batteries or unplug the unit before you touch anything. Then set the coarseness dial to its widest opening and run the grinder upside down in short one-second bursts to shake loose any compacted debris.

After that, the routine is identical to a manual mill. Brush the ceramic burrs dry, wash only the removable spice compartment in warm, soapy water if your model’s instructions allow it, and wipe the motor housing with a lightly damp cloth. Never submerge the motor body—that’s the hardware that dies first when water gets inside.

If you’re shopping for a model that makes cleaning easier, our roundup of the best auto salt and pepper grinders focuses on units with removable, washable grinding chambers.

What Not to Do When Cleaning

The mistakes that break grinders are consistent across every manual and care guide:

• Soaking or immersing the grinder body, which rusts the burrs and ruins the mechanism.
• Using strong cleaners or sprays on the interior, which leave residue that contaminates your next batch of seasoning.
• Reassembling before parts are dry, which traps moisture inside and causes the same corrosion as soaking.
• Overfilling or forcing the mechanism when it jams, which bends the burrs and strips the threads.

A grinder that stops working after a soak is usually beyond repair. If the burrs are rusted or the shaft won’t turn smoothly after a thorough dry brushing, the honest answer is to replace the unit rather than fight it. Peppercorns contain natural oils that can go rancid over time, so a grinder that smells stale even after cleaning may simply be due for a fresh batch of spice.