La Marzocco GB5 S Commercial Espresso Machine (4 Group)

The four-group GB5 S is specified where volume and presentation both matter: four saturated groups and a 15 L steam boiler in La Marzocco's most design-led commercial chassis, at 47.6 in wide.

Engineering worth paying for

• Four saturated groups in stainless-steel precision castings: every group is in permanent thermal equilibrium with its coffee boiler, so brew temperature holds across all four positions under continuous load.
• Dual insulated boilers: 2 x 3.4 L coffee boilers plus a 15 L steam boiler, running independently. Enough steam headroom for three or more baristas on milk without touching brew-side stability.
• Piero group caps (AV and ABR): a re-engineered internal water path and repositioned flow meter for better dose accuracy and easier service.
• Dual PID: independent PID control on the coffee and steam boilers.
• Dimmable barista lights (AV and ABR), hot water economizer and an easy-rebuild steam valve — the details that matter over a long service life.
• Eco mode, 24 V electronics, USB firmware and Pro App connectivity: scheduled standby, low-voltage control circuits, and remote monitoring and diagnostics.

Choosing your configuration

• EE (Semi-Automatic): the barista starts and stops each shot.
• AV (Auto-Volumetric): programmable volumetric doses per group. At four groups with several staff on bar, this is the practical minimum for consistency.
• ABR (Auto Brew Ratio): precision drip-tray scales with Drip Prediction, dispensing to a programmed brew ratio by mass.

Best suited to

Stadiums, airports and transit hubs, large hotel and conference venues, campus and corporate coffee programmes, and flagship cafés running four baristas through a sustained peak.

Pro Touch cool-to-touch steam wands available to special order. Requires a dedicated 50 A circuit and careful counter planning at 47.6 in wide. Contact us to confirm current lead time.