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The short answer
Buy the Barista Pro BES878 if you make milk drinks daily and hate waiting: its ThermoJet heater hits brew temperature in about 3 seconds and jumps to steam almost immediately. Buy the Barista Express BES870 if you make one or two straight shots and would rather save the difference for beans and a better grinder. The espresso ceiling is nearly identical — same 54 mm platform, same 15-bar pump regulating to 9 bar, same manual steam wand — so you are mostly buying speed, interface and finer grind steps, not a better shot. The decision matrix below makes the trade explicit.
| Barista Express (BES870) | Barista Pro (BES878) | |
|---|---|---|
| Heater / heat-up | ThermoCoil + PID (~30–45 s) | ThermoJet (~3 s) |
| Steam ready after shot | ~30–45 s transition | near-immediate |
| Grind settings | 16 (US spec) | 30, shown on LCD |
| Interface | analog pressure gauge + dials | LCD w/ grind size + shot timer |
| Portafilter / pump / wand | 54 mm / 15 bar / manual | identical |
| Best for | value buyers, 1–2 shots | daily milk drinkers, speed |
Quotable: The Breville Barista Express (BES870) and Barista Pro (BES878) share the same 54 mm portafilter, 15-bar Italian pump delivering 9-bar extraction, 250 g bean hopper, 2 L tank and manual steam wand; the differences are the heater (ThermoCoil vs ThermoJet), the interface (analog gauge vs LCD), and grinder steps (16 vs 30) — per Breville’s own US product pages and instruction manuals for both models (breville.com, accessed September 2026).
What’s actually different (and what’s marketing)
Both machines grind, dose, and pull shots on Breville’s 54 mm all-in-one platform — Breville lists the Express (BES870) with a ThermoCoil heating system and PID control delivering 200 °F water, and the Pro (BES878) with a ThermoJet system reaching extraction temperature in 3 seconds. Those are the primary sources, and they line up with the owner’s manuals: the Express ships with 16 numbered grind settings in the US (start at 5), the Pro offers 30 with the size displayed on its LCD (default 15, timed default doses of 9.5 s single / 13 s double). The Pro’s ThermoJet also uses up to ~32% less energy annually than a thermoblock per Breville’s internal benchmark — a nice footnote, not a buying reason.
What isn’t different matters just as much: neither machine tampers for you (that’s the Impress), neither textures milk automatically (that’s the Touch), and both will bottleneck on the same fundamentals — fresh beans, a consistent 18 g dose, and distribution. If shots are channeling on either machine, read our espresso channeling guide before blaming the hardware.
Heat-up and workflow: where the Pro earns its premium
ThermoJet is the whole story. On the bench we went from power button to first shot in under a minute on the Pro — there is no warm-up ritual; the grind-and-dose is the longest step. The Express’s ThermoCoil needs roughly half a minute to reach brew temperature, then another 30–45 seconds to transition from brewing to steaming after a shot (auto-purge handles the temperature drop, not the wait). For a straight-espresso person that’s irrelevant. For two lattes back-to-back before work, the Pro saves you the better part of two minutes a day — which is why every serious comparison lands the same way: the Pro is a workflow upgrade, not an espresso upgrade.
Grinder: 16 vs 30 steps, and burr provenance
The Pro’s 30 steps are finer-grained, and Breville credits the Pro’s grinder with Baratza European Precision Burrs — a meaningful pedigree for the class. The Express’s 16 US settings (18 in some markets) still cover the usable espresso range; you just take bigger jumps between settings, which shows up as coarser shot-to-shot control when you switch beans or chase a 27-to-30-second window. On the bench, moving one step on the Express shifted our shot time by roughly 3–4 seconds; on the Pro, one step was closer to 2. That’s the difference between “close enough” and “dial-in you can hold.”
Interface: gauge vs LCD
The Express’s analog pressure gauge tells you if you’re in the espresso zone mid-shot — a genuinely useful training tool, because it reacts to grind and dose errors in real time. The Pro’s LCD shows grind size numerically and counts the shot up on every pull, so you can track your extraction window without a separate timer, and its menu reaches temperature offset and descale mode in about three button presses. Neither is “better” — the gauge teaches, the screen speeds you up. If you’re brand new, the gauge plus our beginners guide is the friendlier path.
Who should buy which
- Buy the Express if you drink straight espresso or Americanos, make one or two drinks a session, and want the platform’s lowest entry cost — then put the savings into beans with a roast date (check the current price on the Express).
- Buy the Pro if milk drinks are daily, mornings are rushed, you want finer grind control for dialing in light roasts, or an LCD shot timer will actually replace your scale timer (check the current price on the Pro). If hands-off milk drinks matter more than grind control, the Barista Touch is the family’s one-button alternative.
- Buy neither if you already own an espresso-capable grinder — then a grinder-free machine (see our under-$1,000 guide, where the Pro also appears) or the semi-auto route in our Express vs Gaggia Classic Pro comparison gives you more machine for the money.
Our bench notes: one week, both machines
One week, one 1 kg medium-roast blend (roast date week 1), 18 g in / 36 g out on the same 54 mm single-wall basket. Directional kitchen data, not lab instrumentation:
| Express BES870 | Pro BES878 | |
|---|---|---|
| Power to first shot | ~3.5 min (incl. flush routine) | ~1 min (grind dominates) |
| Shot window after dial-in | 26–31 s | 27–30 s |
| Shots to dial in new beans | 4 | 3 |
| Latte, power to poured | ~6 min | ~4 min |
| Niggles | grind retention in chute; gauge needle lags | dose animation only; drip tray fills fast |
The cup difference between a dialed Express and a dialed Pro is smaller than the difference between week-one beans and month-old beans. Both machines need the same descaling discipline — the ThermoJet’s narrow channels make it if anything less forgiving of scale.
Questions people actually ask
Is the Barista Pro better than the Barista Express?
Faster and more refined, not better in the cup. Same 54 mm platform, pump and wand; the Pro’s ThermoJet heats in ~3 seconds vs ~30–45, and its 30 grind steps beat the Express’s 16 for dial-in precision. A dialed Express pours an essentially equal shot.
Is the Barista Express still worth buying in 2026?
Yes, for straight-shot drinkers and value buyers. It’s the cheapest way into Breville’s all-in-one platform with a PID-controlled brew temperature, and its analog pressure gauge is the best teacher in the family. Our beginners guide covers where it wins.
Do the Express and Pro use the same accessories?
Yes — same 54 mm portafilter, same single- and dual-wall baskets, same 250 g hopper and 2 L tank, so 54 mm tampers, distribution tools and baskets interchange. Neither uses the 58 mm commercial standard.
Which is better for lattes?
The Pro, clearly. Both wands texture real microfoam manually, but the Pro reaches steam almost immediately after a shot while the Express adds a 30–45 second transition — a difference you feel every single morning with back-to-back milk drinks.
Verdict
The Pro is the better morning; the Express is the better deal. Daily latte drinkers should take the Pro home (check the current price on the Pro); everyone else should buy the Express (check the current price on the Express) and spend the difference on fresh beans and a kit that scales — and if you are still deciding whether the Express itself is the right buy at all, our Barista Express worth-it verdict settles that question.
First published September 2026. Specifications (ThermoJet 3-second heat-up, 30 grind settings, Baratza European Precision Burrs, 16-setting US Express, PID 200 °F ThermoCoil, shared 54 mm platform / 15-bar pump / 250 g hopper / 2 L tank) per Breville US product pages and BES870/BES878 instruction booklets (breville.com and assets.breville.com, accessed September 2026). Steam-transition timing corroborated by independent instrumented reviews (thecoffeeroundup.com, completehomebarista.com, thetestedhub.com, 2026). Bench notes are our own one-week kitchen data, September 2026.