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Breville Bambino Review (BES450): What Works, What Fails

Breville Bambino review: specs from the BES450 manual, independent lab numbers, the problems owners report, and who should buy the Plus instead.

By Maksud · Published

The short answer

A small, quick-heating espresso machine with a manual steam wand that TechGearLab scores 9.1 of 10 for ease of use, worth buying if you will pair it with a good grinder and accept a light build and a 6.0 espresso-quality score at TechGearLab.

Strengths

  • Ease-of-use score of 9.1 of 10 and milk steaming 8.6 of 10 at TechGearLab, ranked #4 of 11 and named its Best Espresso Machine on a Budget
  • ThermoJet heating reaches extraction temperature in 3 seconds and uses PID control (manufacturer spec, BES450 manual)
  • Ships with both single-wall and dual-wall baskets, per the BES450 manual; Tom's Guide notes the CASABREWS CM5418 Pro ships only dual-wall
  • Compact: 6.3 in wide per Tom's Guide and TechGearLab
  • Fast switch from espresso to steam: 4 seconds per Tom's Guide, under 15 seconds per Home Coffee Expert

Weaknesses

  • Needs a separate grinder to get the most from the single-wall baskets (TechGearLab, Home Coffee Expert)
  • Espresso quality scored 6.0 of 10, its lowest metric alongside customization, at TechGearLab
  • Steam takes about 10 seconds to wind down after you stop it, and the included tamper is plastic (TechGearLab)
  • No 3-way solenoid valve, so the puck can be wet and messy if the portafilter comes out right away (Home Coffee Expert)
  • Light build that feels fragile (Home Coffee Expert); many plastic parts (Reviewed)

My Breville Bambino review in one line: it is Breville’s cheapest espresso machine, per Tom’s Guide, and a good one if you add a grinder. The BES450 manual lists ThermoJet heating that reaches extraction temperature in 3 seconds, PID control, low-pressure pre-infusion and a manual steam wand. TechGearLab named it Best Espresso Machine on a Budget but scored its espresso 6.0 of 10; Tom’s Guide gave it Editor’s Choice and listed no cons.

The weak spots reviewers name are a grinder you must buy separately to use the single-wall baskets well (TechGearLab, Home Coffee Expert) and a light build with many plastic parts. It ranks on our best espresso machines hub by weight of evidence, not by commission.

Breville BES450 specs and lab measurements

Where Breville and the reviewers disagree, both figures are shown. The BES450 manual is the source for most manufacturer specs; Breville’s US product page supplies the pump, dimension, weight and warranty figures.

Spec / measurementBreville Bambino (BES450)Source (manufacturer spec or credited tester with link)
Water tank47 fl oz (1.4 L)Manufacturer spec, BES450 manual; TechGearLab measured 47 oz; Tom’s Guide lists 46 fl oz
Power120 V, 1560 WManufacturer spec, BES450 manual
Portafilter and max dose54 mm, 18 gManufacturer spec, Breville product page
Basket dose ranges1 cup 8-11 g, 2 cup 16-19 gManufacturer spec, BES450 manual
Pump15 bar pump, 9 bar extractionManufacturer spec, Breville product page
Heat-up3 sManufacturer spec, BES450 manual
Preset shot volumesAbout 30 ml (1 cup), about 60 ml (2 cup)Manufacturer spec, BES450 manual
Dimensions (Breville)11.9 x 6.1 x 13.5 in (listed as W x D x H)Manufacturer spec, Breville product page
Dimensions (reviewers)6.3 x 13.7 x 12 inTechGearLab measurement and Tom’s Guide
Weight10.42 lb (Breville); 10.9 lb (Tom’s Guide)Manufacturer spec, Breville product page; Tom’s Guide
Cup clearance5 in (12.7 cm)TechGearLab measurement
Extraction yield18%TechGearLab measurement (refractometer)
Cappuccino, start to finish3 min 36 sTechGearLab measurement
Setup time9 minTechGearLab measurement
Warranty1 year limitedManufacturer spec, Breville product page; Tom’s Guide and Home Coffee Expert also say 1 year

The dimension rows conflict: Breville’s page lists 6.1 in where both reviewers give 6.3 in, and 11.9 and 13.5 in where they give 13.7 and 12 in. Home Coffee Expert gives 6.25 in wide, 13.5 in deep and 12 in tall, which suggests Breville’s labels are out of order, but Breville has not said so.

Is the Breville Bambino worth it for you?

The Breville Bambino is worth it if you want lattes or flat whites from a small footprint and will steam milk yourself. It is a poor buy if you want the machine to do the work.

It suits:

Skip it if:

Espresso: TechGearLab’s score against its own words

TechGearLab’s numbers are middling, its text is not. Espresso quality, weighted 40% of its score, came in at 6.0 of 10, tied with customization as the Bambino’s lowest marks. Yet its review says its testers found the espresso almost as good as a cafe’s.

It measured an 18% extraction yield with a refractometer, inside the 18 to 22% range it calls ideal, against 18.4% for the Bambino Plus and 19.4% for the Barista Express in the same roundup. TechGearLab also notes you can’t control water temperature.

Tom’s Guide is glowing. Its reviewer reports an 18 g in, 36 g out shot in 28 seconds and says every shot had a rich, thick crema with no bitterness or sourness. Those taste notes are Tom’s Guide’s, not ours. Tom’s Guide also says the PID is factory-set to 200°F; the BES450 manual says only “Electronic PID temperature control” and gives no figure.

The two scores are hard to compare. TechGearLab rates the Bambino against 10 other machines, including the Barista Express and Rancilio Silvia; Tom’s Guide frames its verdict around value for money. Neither publishes shot-to-shot temperature data.

Pre-infusion is manual, and sources disagree on whether it is customizable. Breville’s manual says to hold the 1 Cup or 2 Cup button for more than a second to run pre-infusion pressure, then release to extract. Tom’s Guide and Home Coffee Expert call this customizable or adjustable pre-infusion; TechGearLab says you can’t customize it. The manual describes no way to save a pre-infusion time, only shot volumes.

The manual’s timing guide: espresso should start flowing after 8 to 12 seconds, and flow in under 7 seconds means an under-extracted shot.

Grinder and basket choice

The manual says to use the single-wall baskets with freshly ground beans and the dual-wall baskets with pre-ground coffee. Home Coffee Expert’s view is blunt: pre-ground coffee and the Bambino are a frustrating combination. If you are unsure which basket fits your setup, see pressurized vs non-pressurized baskets. For what the 15 bar pump and 9 bar extraction figures mean, see espresso machine bar pressure explained.

Milk steaming on the Bambino: strong wand, slow stop

The manual describes manual milk texturing, with milk at the right temperature, 140-149°F (60-65°C), when the jug is hot to the touch. It also warns that steam can’t stop immediately after you press the button and needs a few seconds. TechGearLab put that wind-down at about 10 seconds before you can remove the pitcher without spraying milk, yet still scored milk steaming 8.6 of 10, second only to the Barista Express in its roundup.

Tom’s Guide says the switch from espresso to steam takes four seconds and praises the one-hole tip on a ball joint. Home Coffee Expert reports under 15 seconds from brew to steam. Reviewed’s expert roundup lists “steam wand not great” among the Bambino’s cons, though the clogging complaint in its text sits next to its discussion of the Bambino Plus (Reviewed). The Bambino Plus adds automatic milk texturing.

Bambino espresso machine problems reviewers and owners report

No source I found publishes a failure rate for the BES450. What exists is reviewer cons and one summary of Amazon reviews, so treat this as a list of patterns, not odds.

  1. Needs a grinder. TechGearLab and Home Coffee Expert both list it; the manual pairs pre-ground coffee with the dual-wall baskets.
  2. Plastic tamper. TechGearLab lists a “dinky tamp” as a con and wishes the machine came with a heftier one. Breville’s manual lists a 54 mm tamper and calls it a plastic tamp in its cleaning warnings.
  3. Wet, messy pucks. Home Coffee Expert says there is no 3-way solenoid valve, so removing the portafilter right after a shot gives a wet, messy puck.
  4. Sour or lukewarm first shots. Home Coffee Expert recommends one or two blank shots to pre-heat. That matches the manual, which says to run a short flow through the group head before inserting the portafilter to stabilize temperature.
  5. Light build. Home Coffee Expert says it is so light it feels fragile, though it calls the stainless body and group head solid; Reviewed notes many plastic parts. TechGearLab calls it well-built.
  6. Problem units from Amazon. Reviewed, writing in May 2025, says the Bambino had a 4.2-star Amazon average with an unusually high share of 1-star reviews, about half of them about receiving a used or dirty product. The other half cite insufficient water temperature and pressure, or components breaking early.
  7. Steam wand blockages. The manual recommends running steam through the wand after milk texturing to reduce blockages, and says a blocked wand stops operating.

Sources also conflict on one point. Home Coffee Expert says the Bambino has no low-water sensor, but the BES450 manual says the LEDs flash 6 times for 3 seconds when no water is detected in the tank.

Bambino lights, alerts and the manual’s fix for each

Every row below comes from the BES450 manual. Bambino Plus owners see different signals; those are on Bambino Plus flashing lights.

What you see or hearWhat it meansWhat the manual says to do
2 Cup button flashing continuouslyClean and descale dueStart descaling with 2 Cup and Steam held for 5 s
All LEDs flash 6 times for 3 sNo water detectedFill the tank to MAX and press it down until it sits flush
Loud noise, no water comes throughTank emptyFill tank
Pulsing or pumping soundNormal pump operation, or tank emptyNo action needed; if the tank is empty, fill it
Machine on but stops workingSafety thermal cut-out, possibly from pump overheating1 Cup and Hot Water for 0.5 s to switch off, unplug, cool 30-60 min
You want the factory shot volumes backCustom volumes savedFrom standby, hold 1 Cup and 2 Cup for 10 s to reset factory volumes

The manual also says the machine enters standby after 10 minutes idle. For the full descale procedure, see how to descale an espresso machine.

Is any part of the Bambino dishwasher safe?

No. The BES450 manual says not to clean any parts or accessories in the dishwasher, and marks the 54 mm portafilter “NOT dishwasher safe.” It says to rinse the baskets and portafilter under hot water right after use, and to empty the drip tray after each use or when its indicator rises through the grid. The manual also warns that hot steam may be released during descaling, so make sure the drip tray is inserted first.

Tom’s Guide suggests a Breville water tank filter, replaced every three months, while the manual advises against highly filtered, demineralized or distilled water.

Bambino against the other machines on our espresso hub

Scores and yields are from TechGearLab’s espresso roundup, which lists the Gaggia Classic Evo Pro, not the E24. Yields use TechGearLab’s text figures where it gives one; the others are its table’s rounded figures.

MachineTechGearLab overallEspresso qualityMilk steamingExtraction yieldBuilt-in grinderSingle-wall baskets included
Breville Bambino716.08.618%NoYes (BES450 manual)
Breville Bambino Plus726.57.718.4%NoNot published
De’Longhi Stilosa444.04.012%NoNot published
CASABREWS CM5418697.06.720.7%NoNot published (Tom’s Guide says the CM5418 Pro, a different model, ships dual-wall only)
Breville Barista Express778.09.119.4%YesNot published
Gaggia Classic (Evo Pro)536.04.717%NoNot published

Breville Bambino verdict: worth it with a grinder

Yes, for first-time buyers who drink milk drinks and will buy a grinder. Ease of use at 9.1 of 10 ties for the top mark on TechGearLab’s board and milk steaming at 8.6 is second only to the Barista Express, and Breville rates the heat-up at 3 seconds. Against that: a 6.0 espresso score at TechGearLab, a grinder you still have to buy, and a light build. Breville’s product page lists a 1-year limited warranty.

CPSC’s recall database showed no Bambino or Breville espresso machine recall when I searched on Oct 4, 2026; its only Breville recall is a December 2015 pressure-cooker recall.

Check the Bambino’s price at Amazon

More on the Bambino and espresso machines

Frequently asked questions

Does the Breville Bambino have a hot water function?

Yes. The BES450 manual describes a hot water button that dispenses through the steam wand, for Americanos and pre-heating cups, and warns the cup temperature is 194°F (90°C). Home Coffee Expert puts the water at around 185-190°F. Tom's Guide suggests purging the wand first if you want a milk-free Americano.

Can you use pre-ground coffee in the Breville Bambino?

Yes, with the dual-wall baskets. Breville's BES450 manual says to use the dual-wall filter baskets with pre-ground coffee and the single-wall baskets when grinding fresh whole beans. Home Coffee Expert calls pre-ground coffee and the Bambino a frustrating combination and says the machine works with it but won't shine.

Why is the 2 Cup button flashing on my Bambino?

A continuously flashing 2 Cup button means the machine is asking for a clean and descale cycle, per the BES450 manual. Pressing any button cancels the alert, but Breville says ignoring it is not recommended because mineral build-up reduces brewing flow, brewing temperature, power and taste. The cycle starts by holding 2 Cup and Steam together for 5 seconds.

Does the Breville Bambino need a grinder?

For the single-wall baskets, yes. TechGearLab lists the lack of a built-in grinder as a con, and Home Coffee Expert says the ceiling for espresso quality depends entirely on your grinder. Without one, Breville's manual points you to the dual-wall baskets, which it says are for pre-ground coffee.

Why did my Bambino stop working mid-shot?

One cause the BES450 manual lists for a machine that is on but stops operating is the safety thermal cut-out, which can activate when the pump overheats. Breville's fix: press 1 Cup and Hot Water together for 0.5 seconds to switch off, unplug the machine, and let it cool for about 30 to 60 minutes. If it keeps happening, the manual says to call Breville Support.

Price watch

Daily price history and drop alerts for the Breville Bambino Espresso Machine (BES450BSS) start once our tracker is live.

Sources

  1. assets.breville.com/BES450/BES450_USCM_IB_M26_LR.pdf
  2. breville.com/en-us/product/bes450
  3. techgearlab.com/reviews/kitchen/espresso-machine/breville-bambino
  4. techgearlab.com/topics/kitchen/best-espresso-machine
  5. tomsguide.com/home/coffee-makers/sage-breville-bambino-review
  6. homecoffeeexpert.com/breville-bambino-review
  7. reviewed.com/cooking/content/breville-bambino-best-espresso-machine-according-to-experts
  8. saferproducts.gov/RestWebServices/Recall

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