If your Breville Bambino Plus isn’t grinding properly or you’re experiencing inconsistent espresso shots, a common culprit might be a grinder clog. Over time, coffee oils, fines, and residual grounds can block the grinder, affecting flavor and machine longevity. Addressing this issue promptly can restore your machine’s performance and ensure delicious coffee every time.
In this guide, you’ll find practical, step-by-step instructions to identify, clean, and prevent grinder clogs in your Breville espresso machine. Safety tips and maintenance advice are included to help you keep your appliance running smoothly.
Key Takeaways
| Common Causes | Coffee oils, fines buildup, and improper cleaning can clog the grinder. |
| Signs of Clog | Uneven grind size, slow grinding, or motor noise indicate a clog. |
| Cleaning Steps | Regular cleaning with appropriate tools and tablets prevents clogs. |
| Preventative Tips | Use fresh beans, avoid overfilling, and perform routine maintenance. |
| Safety Warnings | Always unplug the machine before cleaning to prevent injury. |

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Understanding the Causes of Grinder Clogs
Grinder clogs in your Breville Bambino Plus typically result from a combination of factors. Coffee oils and fine particles (fines) tend to stick to the burrs and grinder chamber, especially if the machine isn’t cleaned regularly. Over time, these residues accumulate, causing blockages that hinder the grinder’s ability to process coffee grounds evenly.
Using old or oily beans can exacerbate this problem, as they produce more residue. Additionally, grinding larger quantities at once or attempting to grind very dark roasted beans can increase the risk of clogs. Recognizing these causes is the first step toward effective troubleshooting and maintenance.

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Signs Your Grinder Is Clogged
- Slow or No Grinding: The burrs turn slowly or stop altogether during operation.
- Unusual Noises: Grinding sounds are irregular or louder than usual.
- Inconsistent Grind Size: Coffee grounds are uneven, affecting shot quality.
- Machine Overheating: The motor feels hot after use.
If you notice these signs, it’s likely that your grinder needs cleaning or clearing of a clog. Addressing it early prevents further damage to the motor or burrs.
Step-by-Step Fix for a Grinder Clog
- Turn Off and Unplug: Always unplug your Breville Bambino Plus before starting any cleaning or maintenance.
- Remove the Bean Hopper: Carefully take out the hopper to access the burr chamber.
- Clean the Burrs: Use a dedicated brush or a soft cloth to remove coffee grounds, oils, and fines from the burrs and chamber.
- Use Cleaning Tablets: Insert approved cleaning tablets (such as Breville BEC250 or Replacement Tablets) into the grinder as per instructions to dissolve residual oils and debris.
- Check for Blockages: Inspect the chute and grinder pathway for any remaining grounds or obstructions. Use a thin brush or pick to clear stubborn residues.
- Reassemble and Test: Reinstall the hopper, plug in the machine, and run a test grind without beans to verify smooth operation.
Regular cleaning with these steps every few weeks can prevent future clogs and keep your espresso tasting fresh and balanced.
Maintenance Tips to Prevent Future Clogs
- Use Fresh Beans: Freshly roasted beans produce less oil and residue.
- Avoid Overfilling: Fill the hopper only to the recommended level to prevent jams.
- Perform Routine Cleaning: Use cleaning tablets periodically and brush the burrs after every few uses.
- Adjust Grind Settings: Coarser settings generate less fines and residue.
- Check Water Quality: Use filtered water to reduce mineral buildup, which can contribute to clogging.
Safety and Tips for Safe Maintenance
Always unplug your Breville Bambino Plus before performing any cleaning or maintenance tasks to avoid electrical shock or injury. Use only recommended cleaning products and tools to prevent damage. Be gentle when handling the burrs and internal components to avoid misalignment or breakage. If you’re unsure or uncomfortable with any step, consult the user manual or contact professional service for assistance.
Remember, routine maintenance not only prevents clogs but also extends the life of your espresso machine and preserves the quality of your coffee.
The Products in This Guide
Breville Bambino Plus

The Breville Bambino Plus offers café-quality espresso with simple features and reliable performance. Proper cleaning and troubleshooting can keep it running smoothly, ensuring every shot tastes perfect.
Pros:
- Compact and stylish design
- Fast heat-up time
- Consistent espresso quality
- Easy to clean
Cons:
- Requires regular maintenance
- Clogs can occur if not properly cleaned
- Limited water reservoir size
Best for: Home baristas seeking a compact, high-quality espresso machine.
Not ideal for: Heavy users grinding large amounts daily may need more frequent maintenance.
Bottom line: A reliable, compact espresso machine with straightforward maintenance for home use.
Breville BEC250 Espresso Machine Cleaning Tablets

Using Breville BEC250 Cleaning Tablets regularly helps maintain your espresso machine in peak condition, removing oils and residues for optimal flavor.
Pros:
- Official Breville product
- Effective at removing coffee oils
- Prolongs machine life
- Easy to use
Cons:
- Requires purchase of tablets
- Need to remember routine schedule
- Limited to compatible models
Best for: Maintaining clean and efficient Breville espresso machines.
Not ideal for: Users who prefer natural or DIY cleaning methods.
Bottom line: An essential cleaning aid to keep your Breville espresso machine performing at its best.
Frequently Asked Questions
How often should I clean my Breville grinder to prevent clogs?
It’s recommended to clean the grinder every 2-4 weeks, depending on usage and bean type. Regular cleaning prevents buildup and maintains optimal performance.
Can I use regular soap or water to clean the grinder?
No, avoid using soap or water directly on the burrs or internal components. Use dry brushes, compressed air, or approved cleaning tablets designed for espresso machines.
What should I do if the grinder still won’t turn after cleaning?
If cleaning doesn’t resolve the issue, check for mechanical damage, ensure the motor isn’t overheating, or consider professional servicing. Never force the grinder to turn.
Are cleaning tablets safe for my Breville Bambino Plus?
Yes, specially formulated tablets like Breville BEC250 are food-grade, non-corrosive, and designed to safely remove oils and residues without harming your machine.
What’s the best way to prevent future clogs?
Use fresh, dry beans, avoid overfilling the hopper, clean regularly with appropriate tools and tablets, and adjust grind settings to reduce fines production.
Keep Your Breville Espresso Machine Running Smoothly
Maintaining your Breville Bambino Plus’s grinder is essential for consistent, high-quality espresso. Regular cleaning, proper bean selection, and routine checks can prevent clogs and extend the lifespan of your machine. With these simple steps and tips, you’ll enjoy perfect coffee shots every time while ensuring your investment remains in top condition.
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