If your Breville Bambino Plus is not building pressure, it can lead to weak espresso extraction and poor flavor. This issue often stems from blockages, pressure build-up problems, or water flow issues. Follow these clear steps to diagnose and fix the problem safely, restoring your machine to professional-quality performance.
Before starting, ensure your machine is unplugged and cooled down to prevent injury. Regular maintenance, including cleaning and replacing filters, can prevent pressure issues in the future.
Key Takeaways
| Check for blockages | Clogged filters or shower screens can cause pressure loss. |
| Clean regularly | Build-up of coffee oils and residues impairs water flow. |
| Inspect water filters | Old or clogged filters restrict water pressure. |
| Descale the machine | Mineral deposits can block water pathways and reduce pressure. |

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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Step 1: Turn Off and Unplug the Machine
Always ensure the espresso machine is turned off and unplugged from the power source before performing any maintenance or troubleshooting to avoid electrical hazards or injury.

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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Step 2: Check and Clean the Filter Basket and Shower Screen
- Remove the portafilter and inspect the filter basket for coffee grounds or blockages.
- Remove the shower screen from the brew head (refer to your model’s manual for specific instructions).
- Clean both with warm water and a soft brush to remove oils and residues.
Step 3: Inspect and Replace Water Filters
If your machine uses water filters, such as the Breville Charcoal Filters or Possiave Water Filters, check their condition. Replace if they are clogged or overdue for replacement.
Remove the filter from the water reservoir and install a new one following the manufacturer’s instructions.
Step 4: Descale the Machine
- Use a descaling solution suitable for Breville machines, following the product instructions.
- Run the descaling cycle or manually flush the system with the solution, then rinse thoroughly with clean water.
Step 5: Test and Adjust
Reassemble the machine, fill with fresh water, and run a test shot. If pressure issues persist, double-check for blockages or consider professional servicing.
The Products in This Guide

Breville Bambino Plus
- ✔ Package Includes: 6 charcoal filters
- ✔ Filter Material: Coconut shell charcoal
- ✔ Usage Time: Up to 2 months per filter

Breville BEC250 Espresso Machine Cleaning Tablets
- ✔ Pack Size: 8 tablets
- ✔ Intended Use: Cleaning coffee oils and residues
- ✔ Safety Features: Non-corrosive, food grade
Breville Bambino Plus

The Breville Bambino Plus delivers third wave specialty coffee at home with a focus on balanced extraction and ease of use. Proper maintenance, including cleaning and replacing filters, is key to preventing pressure issues.
Pros:
- Ensures consistent water flow
- Prolongs machine lifespan
- Easy to replace filters
- Supports optimal pressure buildup
Cons:
- Requires regular replacement
- Can be overlooked during cleaning
Best for: Breville Bambino Plus owners seeking reliable performance
Not ideal for: Not suitable for machines without compatible filters
Bottom line: Replacing water filters regularly is essential for consistent pressure and optimal espresso quality.
Breville BEC250 Espresso Machine Cleaning Tablets

Using Breville BEC250 Cleaning Tablets regularly helps remove coffee oils and residues, maintaining pressure and flavor quality in your espresso machine.
Pros:
- Ensures thorough cleaning
- Extends machine life
- Safe and food-grade ingredients
- Easy to use
Cons:
- Requires purchase of tablets
- Must be used regularly for best results
Best for: Maintaining cleanliness and optimal pressure in Breville espresso machines
Not ideal for: Not for descaling mineral deposits
Bottom line: Regular cleaning with official tablets keeps your Breville espresso machine performing at its best.
Frequently Asked Questions
Why is my Breville Bambino Plus not building pressure?
Common causes include clogged filters, dirty shower screens, mineral buildup, or old water filters. Following the troubleshooting steps can resolve these issues.
How often should I clean the machine?
Clean the shower screen and filter basket weekly, and replace water filters every 2 months or as recommended.
Can I descale the machine myself?
Yes, use a descaling solution designed for Breville machines and follow the manufacturer’s instructions to prevent mineral buildup.
What if cleaning doesn’t fix the pressure issue?
If problems persist, consider professional servicing or contacting Breville customer support for further assistance.
Keep Your Breville Bambino Plus in Top Shape
Regular maintenance, including cleaning, replacing filters, and descaling, is vital to ensure your Breville Bambino Plus maintains optimal pressure and delivers delicious espresso every time. Following these troubleshooting steps can save you time and preserve your machine’s longevity, so you can enjoy café-quality coffee at home.
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