An extraction appliance with a brewing module for forming a brewing chamber for a portion capsule, with a water feed comprising a pump and a water heater for feeding water under pressure to the brewing chamber. The extraction appliance includes a control for the pump that can be integrated into the pump or be present at least partly externally of the pump, as well as a device for measuring the fluid flow into the brewing chamber. The control is configured such that a pump power of the pump is dependent on the fluid flow, and specifically such that given a lower fluid flow, the pump power is reduced in comparison to a greater fluid flow.