Exchangeable cartridge for beverage portion dispenser

An exchangeable cartridge for a portion dispenser arranged for storing and dispensing a plurality of beverage items for the preparation of beverages, the exchangeable cartridge comprising:

• an elongated hollowed storage member comprising an interior configured to hold the plurality of beverage items, the elongated hollowed storage member comprising a closed end and an open end, the open end comprising an exit opening, and
• a closure cap adapted to connect in a removable manner to the elongated hollowed storage member at the open end of the elongated hollowed storage member and to be sealed to the elongated hollowed storage member through a removable complementary connection,
• the closure cap comprises a locking member configured to complementarily fit with a keying member of the portion dispenser, allowing the closure cap to be removed from the elongated hollowed storage member when connected to the portion dispenser and to be re-connected to the elongated hollowed storage member before being disconnected from the portion dispenser,
• the locking member comprises a hollow receiving cavity of a deformable character for receiving a terminal portion of the keying member, and the locking member further comprises an entry passage for selective insertion of the terminal portion of the keying member, a transversal cross-section of the entry passage is smaller than a transversal cross-section of the hollow receiving cavity and a transversal cross-section of the terminal portion of the keying member, and the deformable character of the hollow receiving cavity is configured for expanding the receiving cavity upon insertion of the terminal portion.