A beverage brewer having a water flow control system for controlling the flow water through the system during a brewing cycle. The water flow control system is related to the spray head used in the brewer. The system can be calibrated based on the spray head used with the system and the calibration information can be used during the brewing process. An information device may be provided on the spray head to communication information to the brewer to control the brewing process. The brewer may be provided with a reader to read the information from the spray head. A system which can be used with a brewer, including all of the aforementioned information associated with the spray head for use in controlling the water flow during a brewing cycle. The system can be provided with the brewer or retrofitted with an existing brewer.