Breville Dual Boiler Review Australia (2026)

✍️ By Mik Di Pacci, Founder & CEO, Di Pacci Coffee Company · September 2026

The Breville Dual Boiler (BES920) has been Breville's serious, no-grinder flagship for over a decade, and it still comes up constantly when Australian home baristas ask what's next after a Barista Express or Bambino Plus. Here's an honest look at what it actually offers, where it falls short, and what we'd point you towards instead if you want a true dual boiler machine today.

Two independent stainless steel boilers, a heated 58mm group head, dual PID control, and a genuinely commercial-standard portafilter — the Dual Boiler was built to close the gap between prosumer Breville machines and proper Italian dual boilers, without the grinder Breville's other machines rely on.

• True Dual Boiler
• Triple PID
• 58mm Group
• No Grinder
• Auto-Descale

1. What the Dual Boiler is built around

The defining feature is right there in the name: two separate stainless steel boilers, one dedicated to brewing and one to steam, each under its own digital PID control. A third heating element in the group head adds a further layer of thermal stability, so Breville markets this as a "triple heating system" rather than a simple dual boiler.

Because the boilers are independent, you can pull a shot and steam milk at the same time without either side cooling down — the single biggest practical advantage over Breville's thermocoil machines like the Barista Express, which have to do one job at a time.

2. Grinding: bring your own

Unlike almost every other Breville machine, the Dual Boiler has no integrated grinder. That's a deliberate trade-off: keeping the grinder out means Breville could put a full commercial-standard 58mm group and portafilter on the machine instead, but it also means the price and bench-space commitment are bigger than the spec sheet alone suggests. Budget for a genuine grinder — this is not a machine to pair with a blade grinder or a basic entry-level burr grinder.

3. Control and workflow

The 58mm portafilter comes with pressurised and non-pressurised baskets for both single and double shots, and an integrated 58mm tamper is built into the machine so it's always within reach. A 15-bar Italian pump feeds the group, with the over-pressure valve limiting actual extraction to 9 bar — the figure most espresso guidance recommends, and a detail the Barista Express doesn't share, since its pump has no equivalent limiter.

Pre-infusion is genuinely programmable by pressure and duration rather than just held-button timing, and the backlit LCD shows a shot clock and pressure gauge so you can track and adjust your technique over time. Temperature is adjustable in one-degree Celsius increments across the dual PID system — finer control than the two-degree steps on Breville's thermocoil machines.

4. Pros and cons

5. Who it suits

• Home baristas who already own (or are ready to buy) a serious burr grinder
• Buyers who want genuine simultaneous brew-and-steam without moving to a full prosumer Italian brand
• Anyone who values home-guided descaling over a technician callout
• Households that make several milk-based drinks in a row

It's a poor fit if you want everything in one box — see our Breville Barista Express vs Breville Dual Boiler comparison for how the two actually stack up if you're weighing an all-in-one against a serious separates setup.

6. Full specifications

7. Want a dual boiler today? What Di Pacci stocks

Di Pacci doesn't currently carry the standalone Breville Dual Boiler, but if the true dual boiler category is what you're after, we stock several genuine alternatives across a range of budgets. The Meraki Gen 2 keeps the same dual boiler principle but adds an integrated grinder and grind-by-weight scales in one unit. For separates setups, our dual boiler and heat exchange range spans Bellezza, ECM, Lelit and Rocket, from entry-level dual boiler packages through to endgame machines built to run for decades.

8. Frequently asked questions