Jams are the top cause; clear them by unplugging and removing stuck beans.
- Regular cleaning and using dry beans prevent most grinding issues.
- Replace the grinder if the motor fails or repair costs exceed the value.
Why won't my coffee grinder grind beans?
A grinder stops grinding for several common reasons. The most frequent cause is a jam, often from oily beans or a foreign object. Another culprit is a dull or misaligned burr that can't crush the beans. Motor issues, like overheating or a blown fuse, also stop the grind. Finally, a full or clogged chute can block the ground coffee from exiting.
How to fix a coffee grinder that won't grind
Start by unplugging the grinder for safety. Remove the hopper and any visible beans. If you have a burr grinder, take out the upper burr and brush away any stuck grounds. Check the burrs for dullness or damage; replace them if worn. For blade grinders, inspect the blade for dullness or debris. If the motor feels hot, let it cool for 30 minutes. Look for a reset button on the base, often near the power cord. If nothing works, consult the manual for troubleshooting or contact support.
How to prevent coffee grinder jams
Use dry, fresh beans; oily or flavored beans cause clumping. Grind in short bursts rather than continuous runs to avoid overheating. Clean the grinder regularly, at least once a week, to remove oil buildup. Store beans in an airtight container, not in the hopper. For burr grinders, adjust the setting to a coarser grind if you hear a struggling sound.
When to replace your coffee grinder
If the motor burns out or the burrs are too worn, replacement is often cheaper than repair. A grinder that constantly jams despite cleaning may have internal damage. If the power cord is frayed or the switch fails, replace it for safety. For budget grinders, replacement costs less than a service call. For high-end models, check the warranty before buying new parts.
Is it worth calling a professional repair service?
For most grinders, professional repair costs more than a new entry-level model. Only consider repair for expensive, commercial-grade machines. Check if the grinder is still under warranty; many brands offer free repairs. If the issue is a simple jam, you can fix it yourself. If the motor or electrical parts fail, a pro might be needed, but weigh the cost.