The Breville Barista Pro already does more than most machines at its price: a grinder with 30 settings, a ThermoJet heating system that Breville says reaches extraction temperature in 3 seconds, and an LCD that runs a shot clock while you brew. So the best Breville Barista Pro accessories are not the ones that duplicate the box. They are the few that fill real gaps: no scale, a light integrated tamper, and no easy way to see channeling.
Below are eight upgrades sold on Amazon US, in the order we would buy them. We have not tested these accessories ourselves. The picks are based on Breville’s product page and instruction books, manufacturer specs, and Amazon listings checked on 19 October 2026.
Quick answer: the Breville Barista Pro accessories worth buying
- Scale: Maestri House S2
- Tamper: Normcore V4 Spring-Loaded Tamper, 53.3mm
- WDT tool: Normcore WDT V2.1
- Puck screen: Normcore 53.3mm Puck Screen
- Bottomless portafilter: Normcore 54mm Bottomless Portafilter
- Knock box: MHW-3BOMBER Knock Box
- Water filters: Breville Claro Swiss, 2-pack
- Cleaning tablets: Breville BEC250, 8-pack
If you only buy two, make them the scale and the tamper. Everything else is a refinement.
What already comes with the Barista Pro
Breville’s instruction book (US edition) and product page list a lot in the box, so check yours before you shop:
- A 54mm stainless steel portafilter with one-cup and two-cup baskets, in single-wall and dual-wall versions
- An integrated, removable 54mm tamper and the Razor dose trimming tool
- A dosing funnel attachment, which Breville lists as included on its current product page
- A stainless steel milk jug
- A water filter and holder, plus a cleaning disc, cleaning tablets, a brush and a steam wand cleaning tool
That means you can skip a dosing funnel, a dose trimmer and a basic milk jug unless yours is missing or worn. Older units may not have shipped with the funnel; if yours didn’t, our dosing funnel guide for Breville 54mm machines covers the options.
What makes the Barista Pro different, and why it changes the shopping list
The Barista Pro shares its 54mm portafilter with the Barista Express, Bambino and Barista Touch, so the same 54mm accessories fit. Our Breville portafilter size guide lists every model. Three Pro features change what is worth buying:
- It has a shot clock. Breville’s instruction book says the LCD counts up during the shot. A scale is still essential for weight, but a built-in scale timer becomes a convenience rather than a must.
- It has 30 grind settings and an adjustable upper burr. The Barista Express has fewer settings, according to Majesty Coffee’s comparison. Breville’s manual says the upper burr can extend the grind range. Try that before you spend money on a separate grinder.
- It prompts you to clean. The LCD shows a FLUSH alert when a cleaning cycle is due, and that cycle uses a cleaning tablet. Plan for tablets and water filters as running costs.
Breville Barista Pro accessories compared
| Accessory | Our pick | What it fixes | Price tier | Priority |
|---|---|---|---|---|
| Scale | Maestri House S2 | Guessing dose and yield | Mid-range | High |
| Tamper | Normcore V4, 53.3mm | Uneven tamping | Premium | High |
| WDT tool | Normcore WDT V2.1 | Clumps and channeling | Mid-range | Medium |
| Puck screen | Normcore 53.3mm | Messy shower screen, uneven water | Budget | Medium |
| Bottomless portafilter | Normcore 54mm | Can’t see extraction | Premium | Low |
| Knock box | MHW-3BOMBER Knock Box | Pucks in the bin | Mid-range | Medium |
| Water filters | Breville Claro Swiss, 2-pack | Scale buildup | Mid-range | High (ongoing) |
| Cleaning tablets | Breville BEC250, 8-pack | Coffee oils in the group | Budget | High (ongoing) |
Price tiers: Budget is under $20, Mid-range is $20 to $40, Premium is over $40. Amazon prices change often, so check the current price on each listing.
1. Maestri House S2 Espresso Scale
The Barista Pro times your shot, but it can’t tell you how much coffee went in or how much came out. Weighing both is how you make sense of 30 grind settings: change one thing, weigh the result, and you know whether the change helped.
Key details
- 4.13 × 4.13 × 0.78 in, per the Amazon listing
- 0.1 g resolution from 0.5 g to 2,000 g
- Auto or manual timer, USB-C rechargeable
Pros
- Small enough for most drip trays.
- Built-in timer, handy if you want time and weight on one screen.
- Rechargeable, with no coin cells.
Cons
- Touch controls instead of buttons.
- The listing says waterproof, but no IP rating is published.
Measure the space between your drip tray and the portafilter before you buy any scale. Our low-profile espresso scales guide explains the fit check, and how to use an espresso scale covers the workflow.
2. Normcore V4 Spring-Loaded Tamper (53.3mm)
The Barista Pro’s integrated tamper works, but it is light and relies on you pressing evenly. The Normcore V4 uses a spring and a self-levelling base to give the same pressure every time, and it is sized at 53.3mm for Breville’s 54mm baskets.
Key details
- 53.3mm flat base for Breville 54mm portafilters
- Spring-loaded, with 15 lb, 25 lb and 30 lb springs included
- Self-levelling guide and a stand
Pros
- Takes tamping pressure and angle out of the equation.
- Three springs let you choose the force you prefer.
- Correct size for Breville baskets, so no gap around the edge.
Cons
- Costs more than a plain tamper.
- A spring tamper hides how hard you are pressing, which some people prefer to control.
We compare more options in our best tamper for Breville 54mm guide.
3. Normcore WDT Tool V2.1
Built-in grinders can leave small clumps in the basket. A WDT tool breaks them up with thin needles before you tamp, which helps water flow evenly instead of finding one weak path through the puck.
Key details
- 8 needles, 0.23mm, 304 stainless steel, 46mm long
- Scattered needle layout on V2.1
- 16 spare needles and a stand included
Pros
- Cheap and quick to use.
- Fine needles stir without scratching the basket, per Normcore.
- Spare needles included.
Cons
- Adds a step to every shot.
- The benefit is smaller if your grind already produces few clumps.
Our best WDT tool guide compares five options, and why espresso tastes bitter explains where distribution fits in.
4. Normcore 53.3mm Puck Screen
A puck screen sits on top of the coffee, under the shower screen. It spreads the incoming water and keeps grounds off the group head, so cleanup is quicker.
Key details
- 53.3mm, sized for Breville 54mm baskets
- 0.8mm thick, 316 stainless steel, 0.18mm perforations
- Reusable; rinse after use
Pros
- Keeps the shower screen cleaner.
- Inexpensive and reusable.
- Can help with even water distribution.
Cons
- Takes up headspace, so you may need to lower your dose slightly.
- One more part to rinse after each shot.
5. Normcore 54mm Bottomless Portafilter
A bottomless (naked) portafilter removes the spouts so you can watch the shot come out of the basket. Spurts and thin streams show you where channeling happens, which pairs well with the Barista Pro’s shot clock when you are dialing in.
Key details
- Normcore’s Amazon description says it is designed for 54mm Breville Barista Pro and Barista Express baskets
- 18 g filter basket included
- Anodized aluminium handle
Pros
- The clearest way to diagnose puck preparation problems.
- Comes with its own 18 g basket.
- Also gives more room under the basket for taller cups.
Cons
- The most expensive item on this list, and not essential.
- Messy when shots spray, especially while you are learning.
6. MHW-3BOMBER Espresso Knock Box
A knock box gives spent pucks somewhere better than the kitchen bin. This one is square, so it sits neatly beside the machine, and it holds about 15 pucks before it needs emptying.
Key details
- 1.2 L capacity, about 15 pucks, per the listing
- ABS body with a removable knock bar in a rubber sleeve
- Anti-slip base
Pros
- Square shape uses counter space efficiently.
- Large enough for a few days of shots.
- Cheaper than Breville’s own knock box.
Cons
- Plastic body, so it won’t match the machine’s brushed stainless finish.
- Less established than the bigger accessory brands.
7. Breville Claro Swiss Water Filters
The Barista Pro’s water tank holds a replaceable filter. Breville’s US instruction book says to replace it every 2 months or 60 tank refills, so this is a regular purchase rather than a one-off.
Key details
- Breville BCC009, 2-pack
- Claro Swiss filters; retailer compatibility lists such as Ricambi’s include the Barista Pro (BES878)
Pros
- Genuine Breville part.
- Simple to swap.
Cons
- An ongoing cost.
- Third-party filters cost less, but fit and quality vary.
Check the filter type in your own manual before ordering. Ricambi also advises checking your machine’s batch code, because compatibility varies by production run on some models.
8. Breville BEC250 Cleaning Tablets
When the Barista Pro shows its FLUSH alert, the cleaning cycle needs a tablet in the portafilter with the cleaning disc. The box includes a few tablets; these are the official refills.
Key details
- 8 tablets per pack
- Made for Breville espresso machine cleaning cycles
Pros
- Official tablets for the built-in cleaning cycle.
- Inexpensive.
Cons
- Third-party tablets are cheaper per tablet.
- Another consumable to remember.
Breville Barista Pro accessories you can skip
- A second dosing funnel if your machine came with one.
- A standalone shot timer. The LCD already counts the shot.
- Anything 58mm. Tampers, puck screens and funnels must be 53.3mm or 54mm to fit.
- A replacement milk jug, unless you want a different size for larger drinks.
- A separate grinder, at first. In our view, a scale and better puck prep will teach you more about your shots. If you still can’t dial in after adjusting the upper burr, our Breville Bambino grinder guide covers grinders that also suit the Barista Pro.
How to use your Breville Barista Pro accessories together
Each accessory does one job in the shot routine. Used in order, they take most of the guesswork out of the machine:
- Weigh the beans. Put your dose on the scale. Breville’s manuals give a dose range for the two-cup basket, so start inside that range.
- Grind into the portafilter with the dosing funnel in place to keep grounds off the counter.
- Stir with the WDT tool for a few seconds to break up clumps.
- Tamp level with the spring-loaded tamper so every shot gets the same pressure.
- Add the puck screen, laid flat on the tamped coffee.
- Brew on the scale. Watch the Barista Pro’s shot clock and stop at your target yield.
- Knock and rinse. Tap the puck into the knock box, rinse the screen and basket, and run a cleaning cycle when the FLUSH alert appears.
For the reasoning behind yield targets, read espresso brew ratios explained.
Frequently asked questions
Which Breville Barista Pro accessories should I buy first?
A scale and a 53.3mm tamper. The scale lets you measure dose and yield, and the tamper makes every shot more consistent. Add a WDT tool and puck screen after that.
What size tamper fits the Breville Barista Pro?
A 53.3mm tamper. The Barista Pro uses a 54mm portafilter, and a 53.3mm base fits inside the basket with a small clearance.
Do Barista Express accessories fit the Barista Pro?
Tampers, puck screens, funnels, WDT tools and bottomless portafilters made for Breville 54mm machines fit both, because both use a 54mm portafilter. For model-specific parts such as water filters, check your manual. Our Barista Express accessories guide covers the Express in detail.
Do I need a scale if the Barista Pro has a shot timer?
Yes. The shot clock tells you how long the shot ran, not how much coffee you used or how much espresso came out. You need both weights to dial in consistently.
Should I buy a new grinder for the Barista Pro?
Not first. The built-in grinder has 30 settings, and Breville’s manual describes an adjustable upper burr that extends the range. Get a scale and better puck prep before deciding the grinder is the limit.
Does a bottomless portafilter fit the Barista Pro?
Yes, if it is a 54mm model made for Breville. Normcore’s 54mm listing names the Barista Pro in its description.
Our verdict
The Barista Pro already covers timing, grinding and heat-up, so most of its missing pieces are about measurement and consistency. Buy a scale and a 53.3mm tamper first, add a WDT tool and puck screen if your shots run unevenly, and treat filters and cleaning tablets as running costs. Buying for someone else? See our gifts for Breville espresso machine owners.
Related guides
- Best Breville Barista Express accessories
- Best Breville Barista Touch accessories
- Barista Express vs Barista Pro
- Best Bambino Plus accessories
- Best tamper for Breville 54mm
- Low-profile espresso scales
- Best WDT tool for espresso
- Breville portafilter size guide
Sources
- Breville: the Barista Pro product page
- Breville Barista Pro BES878 instruction book (US edition, via Williams Sonoma)
- Breville Barista Pro BES878 instruction book (Australia and New Zealand edition)
- Majesty Coffee: Breville Barista Pro vs Barista Express
- Ricambi: Breville Claro Swiss water filter compatibility
- Amazon US product listings for each pick, checked on 19 October 2026
