A system for preparing a predetermined quantity of beverage comprises an exchangeable capsule and a fluid dispensing device for supplying an amount of fluid to the exchangeable capsule, a receptacle for holding the exchangeable capsule, and an outlet arrangement for supplying the beverage to a container, such as a cup. The capsule comprises a circumferential wall, a bottom, a lid, an entrance area and a closed exit area. The circumferential wall, the bottom and the lid enclose an inner space that comprises an extractable product. The fluid dispensing device supplies fluid to the extractable product for preparing the beverage. In use, the outlet arrangement is in fluid communication with the exit area for draining the prepared beverage from the capsule. The capsule further comprises an opening element through the closed exit area for draining the prepared beverage from the capsule.