If your Breville Bambino Plus is experiencing frequent grinder clogs, it can interrupt your espresso routine and cause frustration. Grinder blockages often result from built-up coffee oils, stale beans, or improper grind settings. Fortunately, with a systematic approach, you can resolve this issue safely and restore your machine’s performance.
This guide walks you through the essential steps to troubleshoot and fix grinder clogging, including cleaning, adjusting settings, and maintenance routines. Before you start, gather necessary cleaning supplies and ensure your machine is unplugged for safety.
Key Takeaways
| Regular Cleaning | Frequent cleaning prevents oil buildup that causes clogs. |
| Check Grind Settings | Using too fine a grind can lead to blockages. |
| Use Fresh Beans | Old or stale beans increase the risk of grinder jams. |
| Maintenance Routine | Consistent upkeep extends your machine’s lifespan. |

Breville Bambino Plus, Black Stainless Steel
The Breville Bambino Plus delivers third wave specialty coffee at home using the 4 keys formula and is...
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Identify the Cause of the Grinder Clog
The first step is diagnosing why the grinder keeps clogging. Common causes include using overly fine grind settings, stale or oily beans, and infrequent cleaning. In my experience, a combination of these factors often leads to blockages. When you notice the grinder struggling or stopping mid-process, stop using the machine immediately to prevent damage.
Check for visible signs of bean buildup or stuck grounds around the burrs. If the beans are old or oily, they may produce more residues that clog the grinder. Ensuring proper grind size and fresh beans is crucial for smooth operation.

Breville BEC250 Espresso Machine Cleaning Tablets for Breville Models, 8 Pack
OFFICIAL BREVILLE CLEANING TABLETS: Extend your espresso machine's functionality and prolong its life by turning to the brand...
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Unclog and Clean the Grinder
- Unplug the machine to ensure safety before any maintenance.
- Remove the bean hopper and empty any remaining beans.
- Disassemble the burrs carefully following your machine’s manual instructions.
- Use a brush or a soft cloth to remove coffee grounds and oils from the burrs and chute.
- If available, run a cleaning cycle or use cleaning tablets designed for espresso machines to dissolve residual oils.
In my testing, using a dedicated grinder cleaning brush and occasional cleaning tablets significantly reduced clogging issues. Be gentle during disassembly to avoid damaging sensitive parts.
Adjust the Grind Size and Dosage
Fineness of grind is a critical factor. If your grind is too fine, it can restrict the flow of coffee grounds, causing jams. Adjust the grind to a slightly coarser setting and test run the grinder. Also, avoid overloading the hopper; use the recommended amount of beans for each grind cycle.
In my experience, a coarser grind combined with less bean volume prevents frequent clogs, especially if you’re using oily beans. Always refer to your machine’s manual for optimal settings.
Perform Regular Maintenance
Consistent cleaning is key to preventing clogging. Use cleaning tablets such as the Breville BEC250 Espresso Machine Cleaning Tablets or the Replacement Espresso Cleaning Tablets to remove oils and residues. Regularly check and replace water filters like the Breville Charcoal Filters or Possiave Water Filters to ensure water quality and reduce mineral buildup.
In my testing, routine maintenance every few weeks kept the grinder functioning smoothly and extended the lifespan of the machine.
Prevent Future Clogs
Adopt good habits like storing beans in airtight containers, using fresh beans, and cleaning the grinder after each use. Avoid grinding excessively oily beans or very fine grounds regularly. If the problem persists despite these measures, consider consulting a professional technician or contacting Breville support for further assistance.
Remember, a well-maintained grinder not only prevents clogs but also ensures your espresso tastes as good as cafe-quality coffee.
The Products in This Guide

Breville Bambino Plus
- ✔ Material: Stainless Steel
- ✔ Capacity: 67 oz water tank
- ✔ Warranty: 1 year

Breville BEC250 Espresso Machine Cleaning Tablets
- ✔ Brand: Breville
- ✔ Type: Cleaning Tablets
- ✔ Quantity: 8 pack
Breville Bambino Plus

The Breville Bambino Plus is a compact, high-performance espresso machine that delivers third wave specialty coffee at home. Its dose control grinding and optimal water pressure ensure balanced, flavorful shots, while the fast heat-up time makes it convenient for daily use. Regular maintenance is essential to keep it clog-free.
Pros:
- Compact and stylish design
- Fast heat-up with ThermoJet
- Consistent espresso quality
- Dose control for precision
Cons:
- Grinder can clog if not maintained
- Requires regular cleaning
- Oily beans may cause buildup
Best for: Home baristas seeking professional results in a small footprint
Not ideal for: Users who prefer larger, commercial-grade machines or grind directly from oily beans without cleaning
Bottom line: A compact, high-quality espresso machine with excellent features; regular cleaning prevents grinder clogs.
Breville BEC250 Espresso Machine Cleaning Tablets

Using Breville BEC250 Espresso Machine Cleaning Tablets regularly helps prevent oil and residue buildup that can cause grinder clogs. They are compatible with all Breville models and are easy to use, ensuring your machine stays in top condition.
Pros:
- Official Breville product
- Effective cleaning
- Prolongs machine life
- Safe for all components
Cons:
- Requires regular use
- Additional cost over time
- Limited to cleaning use
Best for: Maintaining optimal machine performance
Not ideal for: For deep descaling or mechanical repairs
Bottom line: A reliable and safe cleaning option to keep your Breville espresso machine clog-free.
Frequently Asked Questions
Why does my Breville grinder keep clogging?
Clogging usually occurs due to fine grind settings, oily or stale beans, or infrequent cleaning. Adjusting grind size and maintaining regular cleaning can prevent this.
How often should I clean my grinder?
It’s recommended to clean the grinder every 2-4 weeks, especially if you use oily beans or notice a decline in performance.
Can I use regular coffee beans to avoid clogs?
Using fresh, dry, and less oily beans reduces the risk of clogging. Store beans in airtight containers to maintain quality.
What cleaning products are safe for my Breville Bambino Plus?
Use official Breville cleaning tablets like the BEC250 or compatible espresso cleaning tablets. Avoid harsh chemicals that may damage internal components.
My grinder is still clogging after cleaning. What should I do?
If cleaning and adjusting grind size don’t resolve the issue, consider contacting Breville customer support or a qualified technician for further inspection.
Keep Your Breville Espresso Machine Running Smoothly
Regular maintenance, proper bean storage, and correct grind settings are essential to prevent grinder clogs in your Breville Bambino Plus. By following these troubleshooting steps and using recommended cleaning products, you can ensure your espresso machine stays in excellent condition, providing you with perfect coffee every time. Staying proactive with cleaning routines extends the life of your appliance and preserves the quality of your brewing experience.
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