If your Breville Bambino Plus is struggling to build pressure during extraction, it can lead to weak espresso and inconsistent results. This guide provides clear, step-by-step instructions to diagnose and fix common pressure issues safely and effectively.
Before starting, ensure you have basic cleaning supplies, replacement filters if needed, and a few common tools. Proper maintenance and troubleshooting can extend your machine’s lifespan and improve your coffee experience.
Key Takeaways
| Check for blockages | Clogged filters or water pathways can cause pressure loss. |
| Clean regularly | Built-up coffee oils and residues reduce pressure and flow. |
| Inspect water filters | Old or clogged filters restrict water flow and pressure. |
| Ensure proper grind size | Too coarse grind leads to low pressure; adjust for optimal extraction. |

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Step 1: Turn Off and Unplug the Machine
Safety first. Before inspecting or cleaning, turn off your Breville Bambino Plus and unplug it from the power outlet. Allow it to cool down if recently used.

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Step 2: Check and Clean the Portafilter and Shower Screen
- Remove the portafilter and inspect the basket for coffee grounds or blockages.
- Detach the shower screen and clean it thoroughly with a brush and warm water.
- Reassemble and ensure all parts fit snugly.
Step 3: Clean the Water Pathways and Filters
- Remove the water filter from the water reservoir and clean or replace it if clogged.
- Use a soft brush or cloth to clean the water intake and any accessible internal pathways.
Step 4: Descale the Machine
If you haven’t descaled recently, mineral buildup can impair pressure. Use a descaling solution following the manufacturer’s instructions, or consider using specialized cleaning tablets for thorough cleaning.
Step 5: Check the Coffee Grind and Dose
Use a consistent grind size—ideally medium-fine—and ensure you dose around 19 grams for the 54mm portafilter. Adjust grind size if pressure remains low.
The Products in This Guide

Breville Bambino Plus
- ✔ Dimensions: 7.7 x 12.6 x 12.2 inches
- ✔ Weight: 10.4 lbs
- ✔ Warranty: 1 year

Breville BEC250 Espresso Machine Cleaning Tablets
- ✔ Size: 8 tablets
- ✔ Brand: Breville
- ✔ Shelf Life: 2 years
Breville Bambino Plus

The Breville Bambino Plus is a compact yet powerful espresso machine that benefits from regular maintenance. When it keeps no pressure, cleaning and inspecting key components often resolves the issue. Proper care ensures you get cafe-quality espresso every time.
Pros:
- Built-in thermocoil heats water quickly
- Easy to disassemble for cleaning
- Consistent pre-infusion improves flavor
- Compact design fits small spaces
Cons:
- Requires regular descaling
- Clogged filters can reduce pressure
- May need professional servicing if persistent
Best for: Home baristas seeking reliable espresso
Not ideal for: Users unprepared for regular maintenance
Bottom line: Routine cleaning and inspection solve most pressure issues with the Breville Bambino Plus.
Breville BEC250 Espresso Machine Cleaning Tablets

Using Breville’s official cleaning tablets helps remove oils and residues that can cause pressure drops. Regular cleaning ensures your espresso remains flavorful and your machine runs smoothly.
Pros:
- Effective at removing coffee oils
- Prolongs machine lifespan
- Easy to use
- Compatible with all Breville models
Cons:
- Requires regular replacement
- Slightly more expensive over time
- Needs to be used as part of routine maintenance
Best for: Keeping your Breville espresso machine clean
Not ideal for: Neglecting regular cleaning
Bottom line: Regular use of cleaning tablets prevents pressure issues and maintains espresso quality.
Frequently Asked Questions
Why is my Breville Bambino Plus not building pressure?
Common causes include clogged filters, mineral buildup, or blockages in the water pathways. Regular cleaning and descaling usually resolve these issues.
How often should I descale my espresso machine?
It’s recommended to descale every 2-3 months, or more frequently if you have hard water, to prevent mineral buildup that can affect pressure.
Can I use any cleaning tablets with my Breville Bambino Plus?
It’s best to use official Breville cleaning tablets designed for espresso machines to ensure compatibility and safety.
What grind size is best for consistent pressure?
A medium-fine grind usually works best; too coarse can cause low pressure, while too fine may clog the filter.
Keep Your Brew Flowing Smoothly
Maintaining your Breville Bambino Plus with regular cleaning, proper grind size, and timely descaling will help prevent pressure issues. With some simple troubleshooting, you can enjoy consistent, café-quality espresso at home for years to come.
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