System, capsule and method for preparing a predetermined quantity of beverage

A system for preparing a predetermined quantity of beverage suitable for consumption using an extractable product, comprising:

• an exchangeable capsule,
• an apparatus comprising a fluid dispensing device for supplying an amount of fluid to the exchangeable capsule and having a bottom piercing means, a receptacle for holding the exchangeable capsule, and an outlet arrangement for supplying the beverage to a container, wherein:
• the capsule comprises a circumferential wall, a bottom comprising an entrance opening portion for letting fluid into the capsule, and a lid,
• the circumferential wall, the bottom and the lid enclose an inner space that comprises an extractable product,
• the system is arranged for bringing the fluid dispensing device in fluid connection with the entrance opening portion of the capsule for supplying the fluid to the extractable product for preparing the beverage,
• the system is further arranged so that, in use, the outlet arrangement is in fluid communication with an exit opening portion of the capsule for draining the prepared beverage from the capsule, wherein such capsule is sealed before use with the entrance opening portion being closed and the exit opening portion being closed and
• the capsule comprises at least one movable portion, wherein the bottom piercing means is arranged for pushing the at least one movable portion in the direction toward the exit opening portion without piercing the at least one movable portion, wherein the entrance opening portion is arranged so that a fluid passage opening is created by moving the at least one movable portion and is of approximately predetermined size and is provided at a predetermined location, in that the at least one movable portion forms at least a part of the bottom, wherein the capsule comprises cut outs for determining the size and location of the fluid passage opening and configured to enable movement of the at least one movable portion with respect to the circumferential wall and/or bottom and wherein the cut outs comprise a thinner section configured to break and form the fluid passage opening in the entrance opening portion.