If your Breville Bambino Plus is not building pressure during extraction, it can lead to underwhelming espresso shots. This guide provides clear, practical steps to diagnose and resolve pressure issues, ensuring your machine works smoothly again.
Proper maintenance and troubleshooting are essential for consistent espresso quality. Follow these steps carefully to identify common causes and fix the problem safely at home.
Key Takeaways
| Check for blockages | Clogged filters or ports can cause pressure loss. |
| Inspect the portafilter | Worn or improperly fitted portafilter can affect pressure. |
| Clean the machine regularly | Build-up of oils and residues can impact performance. |
| Verify water pressure and filters | Ensure water filters are clean and replaced as needed. |

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Step 1: Turn Off and Unplug the Machine
Safety first. Always turn off and unplug your Breville Bambino Plus before performing any maintenance or troubleshooting to prevent electrical hazards.

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Step 2: Check the Portafilter and Basket
- Remove the portafilter from the group head.
- Inspect for coffee grounds or oils that may clog the filter.
- Clean the portafilter and filter basket thoroughly with warm water and a brush.
- Ensure the portafilter is properly seated when reattaching.
Step 3: Clear the Shower Screen and Nozzle
- Remove the shower screen according to the user manual.
- Check for coffee residue or blockages.
- Soak and scrub gently if necessary, then rinse thoroughly.
Step 4: Clean or Replace Water Filters
Clogged filters can restrict water flow and affect pressure. Remove the existing charcoal or water filter and replace it with a new one, such as the Breville Charcoal Filters or Possiave Water Filters, following the manufacturer’s instructions.
Step 5: Perform a Descaling Cycle
Mineral build-up can cause pressure issues. Use suitable descaling products like Breville BEC250 Cleaning Tablets to run a descaling cycle. Follow the instructions carefully and rinse thoroughly afterward.
The Products in This Guide

Breville Bambino Plus
- ✔ Power: 1600W
- ✔ Water Tank: 64 oz
- ✔ Pressure: 15 bar

Breville BEC250 Espresso Machine Cleaning Tablets
- ✔ Dissolution: Precision designed
- ✔ Usage: Once a month recommended
- ✔ Safety: Non-corrosive
Breville Bambino Plus

The Breville Bambino Plus is a compact yet powerful espresso machine. When it experiences pressure issues, proper troubleshooting ensures it performs at its best. Regular maintenance and careful inspection are key to avoiding these problems.
Pros:
- Quick to identify issues
- Prevents costly repairs
- Improves espresso quality
- Easy to perform at home
Cons:
- Requires some manual disassembly
- May need replacement parts
- Involves cleaning procedures
Best for: Breville Bambino Plus owners experiencing pressure problems
Not ideal for: Users unfamiliar with machine maintenance
Bottom line: Regular cleaning and inspection are essential for maintaining optimal pressure.
Breville BEC250 Espresso Machine Cleaning Tablets

Using Breville BEC250 Cleaning Tablets ensures thorough cleaning of your espresso machine, removing oils and residues that can cause pressure problems. Regular use extends your machine’s lifespan and maintains excellent espresso quality.
Pros:
- Effective at removing oils
- Safe and food-grade ingredients
- Easy to use
- Prolongs machine life
Cons:
- Requires regular purchase
- Must be used as directed
- Limited to compatible models
Best for: Maintaining clean and efficient Breville espresso machines
Not ideal for: Machines that haven’t been descaled in a long time
Bottom line: Regular cleaning with these tablets helps prevent pressure issues and preserves espresso flavor.
Frequently Asked Questions
Why is my Breville Bambino Plus not building pressure?
Common causes include clogged filters, blockages in the portafilter or shower screen, or mineral build-up. Regular cleaning and inspecting parts can resolve this.
How often should I descale my espresso machine?
It is recommended to descale your machine every 2-3 months, depending on water hardness and usage frequency.
Can I use vinegar to descale my Breville Bambino Plus?
Vinegar is not recommended as it may damage internal parts. Use descaling products specifically designed for espresso machines, like Breville BEC250 Tablets.
Is it safe to disassemble my espresso machine myself?
Yes, if you follow the manufacturer’s instructions carefully. Always unplug the machine and handle parts gently to avoid damage.
Keep Your Breville Bambino Plus in Top Shape
Regular maintenance, thorough cleaning, and timely inspections are vital for preventing pressure issues. Following these steps will ensure your espresso machine continues to produce professional-quality coffee every time.
Always prioritize safety and consult the user manual for specific disassembly and cleaning instructions. With proper care, your Breville Bambino Plus will serve you well for years to come.
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