If your Breville Bambino Plus is not building pressure during extraction, it can lead to weak or under-extracted espresso. This guide provides clear, safe steps to diagnose and resolve pressure issues, helping you enjoy cafe-quality coffee at home.
Understanding common causes like blockages, scale buildup, or worn components can save you time and money. Follow these instructions carefully to restore your machine’s optimal performance.
Key Takeaways
| Check for blockages | Clogged filters or shower screens can cause pressure loss. |
| Clean regularly | Scale and coffee oils buildup impair pressure and flavor. |
| Inspect the portafilter | Ensure it’s properly seated and not damaged. |
| Verify water flow | Blocked water filters or lines reduce pressure. |
| Replace worn parts | Gaskets or valves may need replacing if damaged. |

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Step 1: Turn Off and Unplug the Machine
Always disconnect your Breville Bambino Plus from power before performing any maintenance to avoid electrical hazards.

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Step 2: Remove and Clean the Portafilter and Shower Screen
- Remove the portafilter and inspect the filter basket for clogs or coffee grounds.
- Unscrew or detach the shower screen from the brew head.
- Soak all parts in warm water with a cleaning tablet or espresso machine cleaner.
- Use a soft brush to remove any residue, then rinse thoroughly.
Step 3: Check and Clean Water Filters and Lines
- Remove any water filters (such as Breville Charcoal Filters) according to your model’s instructions.
- Replace filters if they are old or clogged.
- Flush water lines by running water through the machine without coffee to clear blockages.
Step 4: Descale the Machine
If you notice scale buildup, use a descaling solution or descaling tablets (such as Breville BEC250 or Replacement Tablets) to clean the internal components. Follow the manufacturer’s instructions for your specific model.
Step 5: Inspect and Replace Worn Parts
Check the gasket, valves, and other seals for damage. Replace any worn or damaged parts to restore proper pressure and prevent leaks.
The Products in This Guide

Breville Bambino Plus
- ✔ Voltage: 120V
- ✔ Dimensions: 7.7 x 12.6 x 12.2 inches
- ✔ Weight: 10.9 lbs

Breville BEC250 Espresso Machine Cleaning Tablets
- ✔ Pack Size: 8 tablets
- ✔ Use Frequency: Every 1-2 months
- ✔ Safety: Food grade, non-corrosive
Breville Bambino Plus

The Breville Bambino Plus is a compact, high-performance espresso machine that delivers cafe-quality results. When faced with pressure problems, regular cleaning and maintenance are key to restoring optimal performance.
Pros:
- Easy to clean and maintain
- Reliable build quality
- Consistent extraction when working properly
- Supports regular descaling
Cons:
- Can develop blockages over time
- Requires routine cleaning
- Gasket replacement may be needed
Best for: Home baristas seeking quick, accurate troubleshooting
Not ideal for: If the machine has persistent hardware failure or leaks requiring professional repair
Bottom line: Routine cleaning and inspection can resolve most pressure issues with your Bambino Plus.
Breville BEC250 Espresso Machine Cleaning Tablets

Using Breville-specific cleaning tablets like the BEC250 ensures thorough internal cleaning, which is crucial for maintaining pressure and flavor. Regular use prolongs your machine’s life.
Pros:
- Effective at removing oils and residues
- Safe and food grade ingredients
- Easy to use
- Prolongs machine lifespan
Cons:
- Requires purchase separately
- Needs regular use for best results
- Not a quick fix for mechanical issues
Best for: Maintaining optimal pressure and flavor
Not ideal for: As a sole solution for mechanical faults or blockages
Bottom line: Incorporate these cleaning tablets into your routine to prevent pressure loss caused by oil buildup.
Frequently Asked Questions
Why is my Breville Bambino Plus not building pressure?
Common causes include clogged filters, scale buildup, or worn gaskets. Regular cleaning and inspection can often resolve these issues.
How often should I descale my espresso machine?
It’s recommended to descale every 1-3 months depending on water hardness and usage frequency.
Can I fix pressure issues myself or do I need a professional?
Many pressure problems can be fixed with routine cleaning and part replacements. However, persistent issues may require professional repair.
What tools do I need to troubleshoot pressure problems?
Basic tools include cleaning tablets, a soft brush, replacement gaskets, and possibly a descaling solution. Always consult your user manual for specifics.
Keep Your Breville Bambino Plus in Top Shape
By regularly cleaning, inspecting, and replacing worn parts, you can prevent pressure issues and enjoy consistently excellent espresso. Proper maintenance extends the life of your machine and ensures every shot tastes great.
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