The 3-color grind indicator provides real-time guidance based on your extraction, helping you quickly identify whether the grind size and dose need adjustment. The indicator lights up at around 20 seconds into extraction.

• Orange: Grind too fine or dose too high → Grind coarser or reduce the dose
• White: Grind size and dose in the ideal range → Keep the current settings
• Blue: Grind too coarse or dose too low → Grind finer or increase the dose

Tip: Use the color feedback to dial in your espresso without needing advanced grind adjustment experience.

Use the 3-color grind indicator as your first guide:

• Too fast: Grind finer or slightly increase the dose.
• Too slow: Grind coarser or slightly reduce the dose.

If needed, also check your coffee distribution and tamping for consistency.

The G3828A allows you to switch between Celsius (°C) and Fahrenheit (°F) for temperature settings.

1. Press and hold the Cold Brew + Espresso buttons for 3 seconds until “C” flashes.
2. Use the + / − buttons to select °C or °F.

The G3828A automatically monitors milk temperature while steaming and stops when the selected temperature is reached.

• Milk Temperature: 113–194°F / 45–90°C
• Auto Mode: Stops automatically at the target temperature
• Manual Mode: Gives you more control over milk texture and frothing

This makes it easy to create silky microfoam for lattes, cappuccinos, flat whites, and other milk-based drinks.

The exclusive H2C Cold Brew System combines heat pre-infusion with extended cold extraction to prepare refreshing cold coffee in approximately 2 minutes.

• Cold Brew Time: Adjustable from 30–180 sec
• Recommended Starting Point: Approx. 2 min

Adjust the extraction time to suit different beans and flavor preferences.

The touchscreen allows you to customize key parameters for different beans, recipes, and taste preferences.

• Brew Temperature: 176–215°F / 80–102°C
• Pre-Wetting: 0–10 sec
• Pre-Infusion: 0–10 sec
• Espresso Yield: 10–500g
• Cold Brew Time: 30–180 sec
• Milk Temperature: 113–194°F / 45–90°C

Tip: Start with the default settings and adjust one parameter at a time.

The G3828A takes approximately 2 minutes to fully preheat, helping maintain a stable brewing temperature for consistent extraction.

Full Machine Preheat: Approx. 2 min

The G3828A features a quick-release burr design for easier routine cleaning.

• Before cleaning: Turn off and unplug the machine.
• Burr cleaning: Remove residual coffee grounds with a suitable cleaning brush.
• Reassembly: Make sure all parts are completely dry and correctly installed before use.

Avoid using water directly on the burrs or inside the grinder.

The G3828A features a CLn descaling reminder that appears on the display when descaling is needed.

When CLn appears, follow the descaling procedure in the user manual to help maintain consistent brewing and steam performance.

Start by checking the grind size, dose, extraction time, and temperature.

• Sour or watery: Try a finer grind or longer extraction.
• Too bitter: Try a coarser grind or shorter extraction.

Make small adjustments one at a time. Fresh beans and consistent dosing, distribution, and tamping also help achieve a more balanced extraction.