If your Breville espresso machine isn’t grinding properly or producing inconsistent shots, a common culprit is a clogged grinder. Regular maintenance is key to ensuring your machine delivers professional-quality espresso at home. This guide will walk you through the causes of grinder clogs, how to troubleshoot them safely, and effective fixes to get your Breville espresso machine back to optimal performance.
Whether you’re a seasoned barista or a home coffee enthusiast, understanding how to maintain your grinder prevents issues like clogging, which can impact flavor, shot quality, and machine longevity. Let’s explore the common causes and easy-to-follow solutions for clearing grinder clogs in your Breville Bambino Plus.
Key Takeaways
| Regular Cleaning Prevents Clogs | Clean the grinder periodically to avoid buildup of coffee grounds and oils. |
| Use Fresh, Appropriate Beans | Stale or oily beans are more likely to cause clogging. |
| Check for Proper Grind Size | Too fine grind can cause blockages, so adjust if necessary. |
| Perform Step-by-Step Troubleshooting | Identify symptoms first, then follow specific fixes. |
| Safety First During Maintenance | Always unplug the machine before cleaning or fixing. |

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Common Causes of Grinder Clogs in Breville Espresso Machines
Grinder clogs in Breville espresso machines, especially the Bambino Plus, often result from a combination of factors. One primary cause is the buildup of coffee oils and grounds over time, which can solidify and obstruct the grinding pathway. Using beans that are oily, stale, or improperly stored can exacerbate this issue, as oily beans tend to leave residues that stick inside the grinder. Additionally, grinding too finely increases resistance, leading to blockages or strain on the motor. Finally, infrequent cleaning and maintenance allow debris to accumulate, making clogs more likely.
Understanding these causes is the first step toward effective troubleshooting and prevention. Regular maintenance, proper bean selection, and correct grind size are essential for keeping your Breville Bambino Plus operating smoothly and ensuring your espresso always tastes its best.

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Step-by-Step Guide to Fix a Grinder Clog
- Unplug the machine: Always disconnect your Breville Bambino Plus from power before starting any maintenance to prevent injury or damage.
- Remove the bean hopper and grind chamber: Carefully lift out the hopper and remove the upper burr or grind chamber following your machine’s manual instructions.
- Inspect for blockages: Check the grinding pathway, burrs, and chute for coffee grounds or oil buildup. Use a flashlight if necessary.
- Clean the grinder: Use a soft brush or a dedicated cleaning brush to sweep out any grounds. For stubborn residues, wipe with a damp cloth—avoid harsh chemicals.
- Use cleaning tablets if needed: For deep cleaning, consider using Breville BEC250 Cleaning Tablets or a similar product. Follow the instructions for proper dissolution and application.
- Reassemble and test: Put all parts back correctly, reattach the hopper, and plug in your machine. Run a small amount of beans to see if the grind process is smooth and consistent.
Repeat these steps periodically to maintain optimal grinding performance and prevent future clogs.
Tips for Preventing Grinder Clogs
- Use fresh, low-oil beans: Choose beans that are not overly oily or stale. Store beans in an airtight container in a cool, dark place.
- Adjust grind size: Avoid grinding too fine unless necessary. Coarser settings reduce the risk of blockage.
- Clean regularly: Schedule weekly or bi-weekly cleaning to remove oil and grounds buildup.
- Use appropriate amounts: Do not overfill the hopper, which can cause uneven grinding and strain the motor.
- Handle beans properly: Avoid grinding beans that are moist or clumped, as these can cause blockages.
Following these tips helps maintain consistent performance and extends the life of your Breville Bambino Plus.
When to Seek Professional Help
If you’ve tried the above troubleshooting steps and your grinder still clogs or the machine exhibits other issues like motor noise or inconsistent grind size, it might be time to contact a professional technician. Prolonged neglect of grinder clogs can lead to motor strain or damage that requires expert repair. Always refer to your Breville manual or authorized service centers for assistance to ensure safety and preserve your warranty.
The Products in This Guide

Breville Bambino Plus
- ✔ Weight: 13.2 lbs
- ✔ Dimensions: 7.7 x 16.1 x 12.6 inches
- ✔ Power: 1600W

Breville BEC250 Espresso Machine Cleaning Tablets
- ✔ Size: 8-pack
- ✔ Material: Pharmaceutical grade
- ✔ Effectiveness: Removes oils and residues
Breville Bambino Plus

The Breville Bambino Plus stands out for its compact size yet professional capabilities, including dose control grinding, optimal water pressure, and quick heat-up time. It’s ideal for serious espresso lovers who want café-quality results at home.
Regular maintenance, including cleaning the grinder, ensures it continues to perform at its best. This espresso machine is a reliable choice for those seeking consistent, high-quality coffee.
Pros:
- Fast heat-up time
- Compact design
- Precise dose control
- Easy to use
Cons:
- Requires regular cleaning
- Limited water reservoir
- Grinding noise can be loud
Best for: Home baristas seeking quick, professional espresso
Not ideal for: Heavy-duty commercial use or large-scale production
Bottom line: A compact yet powerful espresso machine perfect for home use with easy maintenance.
Breville BEC250 Espresso Machine Cleaning Tablets

Using Breville BEC250 Cleaning Tablets regularly helps remove coffee oils and residues, extending your espresso machine’s lifespan. They are specially designed for Breville models, ensuring thorough cleaning without damaging internal components.
Maintaining a clean grinder and brewing system prevents clogs and ensures optimal flavor extraction, making these tablets a valuable addition to your maintenance routine.
Pros:
- Easy to use
- Effective at removing oils
- Prolongs machine life
- Food and pharmaceutical grade ingredients
Cons:
- Requires purchase separately
- Needs to be used regularly
- Not for deep descaling
Best for: Maintaining peak performance in Breville espresso machines
Not ideal for: For users who prefer manual cleaning methods
Bottom line: A simple, safe way to keep your Breville espresso machine running smoothly.
Frequently Asked Questions
How do I know if my grinder is clogged?
Signs include difficulty in grinding, inconsistent shot quality, unusual noises, or the machine stopping unexpectedly during grinding.
Can I unblock my grinder without professional help?
Yes, with careful cleaning and removal of residual grounds. Always unplug the machine first and follow step-by-step cleaning procedures.
How often should I clean my Breville grinder?
Ideally, clean the grinder weekly if you use it daily, or at least bi-weekly, to prevent buildup and ensure consistent performance.
Are cleaning tablets safe for my Breville machine?
Yes, Breville BEC250 tablets are designed specifically for their machines and contain food-grade, non-corrosive ingredients that safely clean internal parts.
What grind size should I use to avoid clogs?
Use a medium grind for most espresso brewing needs. Fine grinds are more prone to clogging, so adjust accordingly based on your machine’s performance.
Maintaining Your Breville Bambino Plus for Perfect Espresso
Regular cleaning and proper bean selection are essential for preventing grinder clogs and ensuring the longevity of your Breville Bambino Plus. By following the troubleshooting steps and tips outlined above, you can keep your machine functioning smoothly and enjoy consistently excellent espresso at home. Remember, a well-maintained grinder not only enhances flavor but also protects your investment for years to come.
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