Swan coffee maker produces weak coffee even when using normal amounts of grounds.

Safety first: Unplug before internal inspection; external adjustments can be done with the unit off.

Brewing adjustments:

• Grind size: Use a medium grind suitable for drip coffee; too coarse will yield weak coffee.
• Coffee dose: Follow Swan's recommended coffee-to-water ratio (typically 6–7 g per 100 ml).
• Use "strong" mode: If your Swan model has a strength selector, choose a stronger setting to slow the flow.

Temperature and flow:

• Ensure the machine is fully heated before brewing; some models preheat water.
• If coffee remains weak despite correct grind and dose, the brew temperature may be low or a bypass valve may be diverting water around the grounds. In that case, the thermostat or valve assembly may need service.