If you’re experiencing grinder clog issues with your Breville Bambino Plus, you’re not alone. Grinder clogs can impact your espresso quality and machine performance. Fortunately, most clogs are fixable with proper steps and preventive care. This guide will walk you through the common causes of grinder clogs in Breville espresso machines and provide detailed, safe, and practical solutions to resolve them quickly.
Whether you’re a beginner or a seasoned barista at home, understanding the causes and fixes for grinder clogging will help you maintain optimal operation and enjoy cafe-quality coffee every day.
Key Takeaways
| Common Cause | Overly oily or fine coffee grounds can clog the grinder. |
| Regular Maintenance | Cleaning your grinder regularly prevents buildup and clogs. |
| Proper Grind Size | Adjust grind size to avoid excessive fine grounds that cause jams. |
| Use Quality Beans | Low-quality or oily beans increase the risk of clogging. |
| Safe Disassembly | Always unplug and carefully disassemble before cleaning. |

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Understanding Why Your Breville Grinder Clogs
Grinder clogs in your Breville Bambino Plus often result from using beans that are oily or too finely ground. Oily beans, especially dark roasts, tend to leave residue that can stick to the burrs and chute, causing blockages over time. Similarly, setting your grinder to an excessively fine setting increases the likelihood of grounds compacting and jamming the burrs.
Another factor is infrequent cleaning. Coffee oils and particles build up inside the grinder, reducing clearance and trapping grounds. Recognizing these causes helps you take proactive steps to prevent future clogs and keep your machine functioning optimally.

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Step-by-Step Fix for Grinder Clogging
- Unplug the Machine: Before starting, always disconnect the Breville Bambino Plus from power to ensure safety.
- Remove the Bean Hopper: Carefully take out the hopper and set aside. Empty any remaining beans.
- Disassemble the Grinder: Remove the upper burr and chute according to your machine’s manual. Handle parts gently to avoid damage.
- Clean the Burrs and Chute: Use a soft brush or a cleaning brush (preferably a dedicated grinder brush) to sweep away coffee grounds and oils. Do not use water unless specified by your manual.
- Inspect for Obstructions: Look for jammed grounds or residue. If you find stubborn buildup, use a wooden toothpick or a non-metallic tool to gently dislodge blockages.
- Reassemble and Test: Once cleaned, reassemble the grinder parts, refill with fresh beans, and run a test grind to check for smooth operation.
- Adjust Grind Settings: Avoid the finest setting if you notice frequent clogs. Opt for a slightly coarser grind.
Preventative Maintenance Tips
- Clean Regularly: Schedule cleaning every 2-4 weeks depending on usage. Use Breville BEC250 Cleaning Tablets to dissolve oils and residues effectively.
- Use Quality Beans: Opt for high-quality, low-oil beans to minimize buildup.
- Adjust Grind Size: Start with a medium setting and adjust finer gradually, avoiding extremely fine grounds.
- Store Beans Properly: Keep beans in an airtight container away from humidity to maintain consistency and reduce oil release.
- Inspect for Wear: Check burrs periodically for wear or damage, replacing if necessary to ensure smooth grinding.
Troubleshooting Common Issues Beyond Clogging
If cleaning doesn’t resolve your clog or grinding issues, consider other troubleshooting steps. Verify that the burrs are correctly aligned and not worn out. Excessive noise or uneven grounds may indicate a mechanical issue or need for professional servicing. Always consult your manual or contact Breville support for persistent problems.
In addition, ensure your machine’s water filter (if applicable) is clean, as mineral buildup can affect performance. Proper maintenance and attentive use are key to extending your machine’s lifespan and ensuring optimal espresso quality.
The Products in This Guide

Breville Bambino Plus
- ✔ Bean Capacity: 1 lb
- ✔ Power: 1600W
- ✔ Warranty: 1 Year

Breville BEC250 Espresso Machine Cleaning Tablets
- ✔ Pack Size: 8 tablets
- ✔ Shelf Life: 2 years
- ✔ Brand: Breville
Breville Bambino Plus

The Breville Bambino Plus combines advanced features and compact design, making it ideal for home baristas. Its grind control and reliable burrs help produce consistent grounds, but regular cleaning is essential to prevent clogs. Proper use and maintenance will keep your espresso tasting perfect.
Pros:
- Compact and stylish design
- Easy to use grind control
- Reliable burrs for consistent grind
- Fast heat-up and extraction
Cons:
- Requires regular cleaning
- Oily beans can cause buildup
- Burrs may wear over time
Best for: Home baristas seeking cafe-quality espresso in a compact machine
Not ideal for: Heavy daily use with oily beans without maintenance
Bottom line: Regular cleaning and correct grind settings are key to avoiding clogs and enjoying perfect espresso.
Breville BEC250 Espresso Machine Cleaning Tablets

Using Breville BEC250 Cleaning Tablets helps dissolve coffee oils and residues, preventing clogs and maintaining flavor quality. Regular use keeps your grinder and internal components clean, ensuring your espresso remains fresh and consistent.
Pros:
- Effective oil removal
- Prolongs machine lifespan
- Easy to use
- Food-grade ingredients
Cons:
- Needs to be purchased separately
- Regular use required for best results
- Only for cleaning, not descaling
Best for: Maintaining your Breville espresso machine’s internal cleanliness
Not ideal for: Ignoring routine cleaning or using non-Breville cleaning products
Bottom line: Routine cleaning with these tablets helps prevent grinder clogs and keeps your espresso tasting great.
Frequently Asked Questions
Why does my Breville grinder keep clogging?
Clogging is often caused by using oily beans, grinding too fine, or lack of regular cleaning. Adjust your grind size and clean the grinder frequently to prevent this.
How often should I clean my grinder?
It’s recommended to clean your grinder every 2-4 weeks, depending on usage and bean type, to prevent buildup and clogs.
Can I use water to clean the grinder?
No, water can damage the burrs and internal components. Use a dry brush or a dedicated cleaning tablet for safe cleaning.
What grind setting is best to avoid clogs?
Start with a medium grind and avoid the finest setting unless you’re experienced. Adjust coarser if you notice frequent jams.
What should I do if cleaning doesn’t fix the clog?
If cleaning doesn’t resolve the issue, check for worn burrs or mechanical damage. Contact Breville support for professional servicing.
Keep Your Breville Grinding Smoothly
Regular maintenance, proper bean selection, and attentive adjustments are essential to prevent grinder clogs in your Breville Bambino Plus. Following the steps and tips outlined above will help you maintain optimal performance, ensuring your espresso always hits the mark. Invest a little time in cleaning and adjusting, and your machine will reward you with years of high-quality coffee.
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