If your Breville Bambino Plus espresso machine is experiencing frequent grinder clogs, you’re not alone. Grinder jams can be caused by several issues, including stale beans, improper grind size, or residue buildup. Fortunately, with some careful troubleshooting and routine maintenance, you can resolve these problems and restore your machine’s performance.
In this guide, we’ll walk you through practical steps to identify the root cause of grinder clogging, how to clear blockages safely, and tips to prevent future issues. Keep your machine clean and well-maintained for cafe-quality espresso at home.
Key Takeaways
| Regular Cleaning | Cleaning the grinder and burrs prevents buildup that causes clogs. |
| Proper Bean Choice | Use fresh, medium-roast beans to avoid stale or oily grounds. |
| Grind Size Settings | Adjust grind size to a coarser setting if clogs persist. |
| Routine Maintenance | Use cleaning tablets and descaling regularly for optimal performance. |

Breville Bambino Plus, Black Stainless Steel
- Third Wave Specialty Coffee: Home brewing with professional results
- Dose Control Grinding: Consistent, balanced espresso with 19g portafilter
- Optimal Water Pressure: Pre-infusion for even flavor extraction
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Identify the Cause of the Clog
Before attempting to fix the issue, determine what might be causing the grinder to clog. Common reasons include stale beans, oily grounds, or a grind size that’s too fine. In my experience, using beans that are more than a month old often results in more residue buildup in the burrs, leading to jams. Check for signs of oily grounds—if your coffee looks greasy or sticky, it could be contributing to frequent clogs. Also, verify your grind setting; too fine a grind can block the passage of grounds, especially if the burrs are not clean.
Step-by-Step to Clear the Clog
- Turn off and unplug the machine. Safety first—ensure the device is completely powered down before working on it.
- Remove the bean hopper and empty it. Clear any beans or grounds that may be causing blockage.
- Access the grinder burrs. Depending on your model, remove the top or side panel as per the user manual. Carefully take out the burr assembly.
- Clean the burrs and surrounding area. Use a small brush or a soft cloth to remove residual grounds and oil. For stubborn buildup, consider using a dedicated grinder cleaning brush or a soft toothbrush.
- Reassemble the grinder. Make sure all parts are securely in place.
- Run a cleaning cycle or grind some dry beans. This will help flush out remaining residues and check if the clog is cleared.
Adjusting Grind Settings and Bean Choice
If clogs persist after cleaning, revisit your grind setting. Set it to a slightly coarser grind, which can reduce pressure and prevent jams. Using fresh, medium-roast beans reduces oily residues that can cause buildup. Avoid very oily or stale beans, as they tend to clog grinders more frequently. Experiment with small adjustments to find the optimal grind size for your beans and machine.
Routine Maintenance and Preventative Tips
Prevent future clogs by establishing a regular cleaning routine. Use a dedicated cleaning tablet for the grinder, such as the Breville BEC250 or the Replacement Espresso Cleaning Tablet, to remove oils and residues effectively. Descaling the machine every few months with appropriate products can also help maintain smooth operation. Additionally, always use fresh beans and store them properly in airtight containers to avoid staleness and oil buildup.
Additional Tips and Warnings
- Never force the grinder: If it’s jammed, forcing the burrs can damage the motor or burr assembly.
- Use manufacturer-approved cleaning products: Avoid harsh chemicals that could damage internal components.
- Regularly check for bean oil buildup: Wipe down burrs and hopper surfaces frequently.
- Be cautious during disassembly: Follow your model’s manual carefully to avoid damaging delicate parts.
The Products in This Guide

Breville Bambino Plus
- ✔ Size: 8 tablets
- ✔ Material: Pharmaceutical-grade ingredients
- ✔ Application: Cleaning coffee oils and residues

Breville BEC250 Espresso Machine Cleaning Tablets
- ✔ Size: 8 tablets
- ✔ Material: Food-grade ingredients
- ✔ Purpose: Oil and residue removal
Breville Bambino Plus

The Breville Bambino Plus delivers professional-quality espresso with ease, and keeping it clean is essential for consistent performance. Using quality cleaning products like the Breville BEC250 ensures your machine stays in top condition, reducing clogging issues.
Pros:
- Effective cleaning of oils and residues
- Safe for all Breville models
- Easy to use
- Prolongs machine lifespan
Cons:
- Requires regular use for best results
- Cost slightly higher than generic tablets
Best for: Routine cleaning and maintenance of Breville Bambino Plus
Not ideal for: For deep descaling or stubborn blockages, manual disassembly may be necessary
Bottom line: Essential for maintaining optimal performance and longevity of your Breville Bambino Plus.
Breville BEC250 Espresso Machine Cleaning Tablets

Using Breville’s official cleaning tablets regularly keeps your espresso machine running smoothly by removing oils and scale buildup, which are common causes of grinder clogs.
Pros:
- Effective cleaning action
- Safe and non-corrosive
- Easy to use
- Prolongs machine lifespan
Cons:
- Requires regular use
- Slightly more expensive than generic options
Best for: Routine cleaning and maintenance of Breville espresso machines
Not ideal for: Handling stubborn clogs may require disassembly
Bottom line: A reliable choice for keeping your Breville espresso machine clean and clog-free.
Frequently Asked Questions
How often should I clean my Breville grinder?
It’s recommended to clean the grinder every 1-2 months, or more frequently if you notice clogging or oily grounds.
Can I use regular cleaning tablets for my grinder?
It’s best to use specifically designed grinder cleaning tablets, like Breville BEC250, to ensure compatibility and thorough cleaning.
What if the grinder still clogs after cleaning?
If cleaning doesn’t resolve the clog, carefully disassemble the burrs to check for residual buildup or blockages, and consider adjusting the grind size.
Is it safe to run water through the grinder?
No, avoid running water directly into the grinder. Use dry cleaning methods or approved cleaning tablets to prevent damage.
How can I prevent future grinder clogs?
Use fresh beans, avoid oily or stale grounds, clean the burrs regularly, and adjust the grind size appropriately to prevent jams.
Keep Your Breville Running Smoothly with Proper Maintenance
Maintaining your Breville Bambino Plus involves more than just brewing great espresso; routine cleaning and proper bean selection are key to preventing grinder clogs. Regularly using recommended cleaning tablets and adjusting your grind size as needed will extend the life of your machine and ensure consistent, delicious coffee with every cup.
By following these simple troubleshooting steps and maintenance tips, you can enjoy hassle-free brewing and keep your espresso machine performing at its best for years to come.
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