La Marzocco GB5 S

Enhance your specialty-coffee performance with the La Marzocco GB5 S, a second-generation machine blending classic European design with cutting-edge features. Redesigned visuals, a water sensor for quality control, and Luminaire electronics modernise this iconic espresso machine.

Construction & Design
The GB5 S combines timeless elegance with a contemporary aesthetic. The redesigned front panels and iconic red lilies pay homage to La Marzocco’s Florentine heritage, transforming the machine into a premium craftsmanship statement. Red accents on the buttons and branding add boldness, while dimmable barista lights provide a customisable workspace that supports focus and precision.

Saturated Groups
The GB5 S is equipped with saturated groups, guaranteeing thermal stability and precise temperature control in every espresso — ensuring consistent extraction and flavour.

The machine is available in multiple configurations. The number of saturated groups depends on the model you choose:
2 groups
3 groups
4 groups

Dual Boilers
Enjoy optimal temperature stability with dual boilers, enabling simultaneous brewing and steaming without interruption. Reduce energy consumption thanks to insulated boilers while ensuring exceptional thermal stability. The innovative Piero group caps (designed by Piero Bambi) and saturated groups guarantee unmatched consistency in extraction.

The coffee-boiler system is unique. If you prefer independent boilers for each group, we recommend exploring the La Marzocco GB5 X — which shares many features with the GB5 S, with several enhancements.

Extraction System
The GB5 S features advanced pre-infusion, a ruby flow restrictor, and a performance-touch steam wand for superior espresso extraction. Luminaire electronics provide precise control, contributing to an exceptional brewing experience. The easy-to-rebuild steam valve allows effortless maintenance from the front.

PID Controller
Benefit from dual PID control, enabling baristas to finely adjust the coffee and steam boiler temperatures. This ensures optimal extraction conditions for various coffee profiles. The machine also features 24-V electronics for improved reliability and diagnostics.

Water Sensor
The GB5 S is the first La Marzocco machine series equipped with a water-quality sensor measuring conductivity and hardness. This allows you to monitor water quality and filter performance without additional test tools.

Optional Pro Touch Steam Wand
The machine comes with a classic steam wand that produces beautifully silky milk — just be careful as it becomes hot during and after steaming.

You can upgrade to Pro Touch steam wands on the GB5 S, but it may be worth considering the GB5 X if this feature is essential.

Pro Touch steam wands are double-walled and vacuum-insulated, ensuring optimal temperature and power while remaining cool to the touch. They deliver velvety microfoam for lattes and cappuccinos with precision.

App Integration
Stay connected with the La Marzocco Pro app, offering control over daily functions. Adjust doses, modify coffee-boiler temperature, and access usage statistics for enhanced customisation.

EE, AV or ABR
The GB5 S is available in Semi-Automatic (EE), Automatic-Volumetric (AV), and Auto Brew Ratio (ABR) versions.

The EE version allows semi-automatic operation where the barista manually controls the extraction time.

The AV version allows baristas to program the duration or volume of an espresso. The machine automatically dispenses the programmed amount.

The ABR version uses La Marzocco’s patented Auto Brew Ratio technology and built-in scales in the drip tray, allowing baristas to brew by mass, volume, or brew ratio (e.g., a 1:2 ratio with 19 g in and 38 g out).