Coffee is very weak or watery, even on the strongest setting.

Safety first: Unplug before adjusting internal grinder settings.

Improving extraction:

• Adjust grind: Set the grinder to a finer setting using the external knob or slider while the grinder is running (to avoid jamming).
• Check bean quality: Use fresh, medium-roast beans. Very oily or stale beans can affect grinding and flow.
• Clean grinder: Remove the hopper and upper burr. Vacuum out old grounds and ensure the burrs are sharp and undamaged. Replace worn burrs.
• Inspect brew group: Clean and lubricate the brew group. Ensure the piston moves fully to compress the coffee puck. Replace worn seals if pressure is not maintained.