Pepper Grinder Not Working? How to Fix It

Before you throw it out: a grinder that’s stopped working is almost never broken — it’s usually one of five simple, fixable faults. Work through them in order to tell a mill you can save from a genuine throwaway. (If it just spins without grinding, the won’t-grind diagnostic is the quickest route.)

1. It’s empty

The obvious one, and the most common. A mill that turns freely but drops nothing is out of peppercorns. Windowed mills like the Haomacro classic make this a glance; opaque ones need a look inside. Refill to four-fifths (the refill guide has the routine).

2. It’s set too fine

Screwed all the way down, the rotor can press so hard against the ring that nothing gets through. Back the top nut off half a turn (counter-clockwise) and try again — the finest usable setting is just shy of fully tight. Full detail in the coarseness guide.

3. Damp clumping

Moisture cements salt or pepper around the mechanism — the usual cause of a stuck salt grinder. Empty the mill, let it dry, and grind a spoonful of dry white rice through it to scrub the core and absorb oils, then refill dry.

4. It’s a sealed disposable

Many supermarket grinders (the McCormick-style ones) are glued shut on purpose — built to be tossed when empty. If the top has no visible thread and won’t turn under firm hand pressure, there’s nothing to fix. That’s the case for switching to a refillable mill.

5. A worn-out core

If the mill grinds only dust at every setting, the burr has dulled — a soft-steel problem, not a ceramic one. Ceramic cores stay sharp for years, which is why our picks all use them. A truly worn mill is due for replacement.

By brand

Most branded mills fail for the same handful of reasons above, with a couple of brand-specific notes:

• Peugeot. The steel mechanism is guaranteed for life, so a Peugeot that won’t grind is almost never broken — it’s an empty chamber, damp or wrong seasoning, or the u’Select ring set fine. Empty it, refill dry, and open the u’Select a step; a genuine fault is a warranty claim.
• Cole & Mason. Same story — the Precision+ mechanisms carry a lifetime guarantee, so suspect moisture or the wrong ingredient first: dry peppercorns, dry coarse salt, and a mill kept away from steam. Clumping on the ceramic salt side is the usual “problem.”
• Le Creuset. Check the top is screwed down fully with no crystals blocking the seal, and that the top screw is set to grind rather than fully closed. The ceramic mechanism rarely fails; damp-salt clogging is the common cause.
• Salter and other electric mills. Batteries first: fresh cells, the right way round, and clean contacts — wipe any corrosion with a dry cloth. If the motor runs but nothing comes out, a peppercorn is jammed; open it and clear the mechanism.

Check current prices: Peugeot · Cole & Mason · Le Creuset · Salter · McCormick

Frequently asked questions

Why is my pepper grinder turning but not grinding?

Usually it is empty, or set so fine the rotor is pinched shut. Check the chamber first, then loosen the top nut half a turn. If it still fails, the mechanism may be clumped with moisture.

How do I unclog a grinder?

Empty it, let any damp seasoning dry, then grind a spoonful of dry white rice through the mill. The rice scrubs the ceramic and absorbs oils; brush out the residue and refill dry.

My grinder top won't turn at all — is it broken?

Possibly it is a sealed disposable that was never meant to open, or the nut is salt-stuck. Try a dry cloth for grip; if there is no thread and no give, it is a throwaway unit.

When should I just replace it?

When it grinds only powder at every setting despite being full and correctly adjusted — the burr has worn out. Ceramic-core mills rarely reach this point; cheap steel ones do.

Why has my Peugeot or Cole & Mason mill stopped grinding?

Rarely the mechanism — both are guaranteed for life. It is almost always an empty chamber, damp or wrong seasoning, or the grind set too fine. Refill dry and open the adjustment a step; a true fault is a warranty claim.

My Salter or other electric grinder won't work — what do I check first?

Batteries. Fit fresh ones the right way round and clean any corrosion on the contacts with a dry cloth. If the motor runs but nothing comes out, a peppercorn is jammed — open it and clear the mechanism.