Cartridge for the preparation of beverages

A cartridge containing one or more beverage ingredients and being formed from substantially air- and water-impermeable materials, the cartridge comprising an inlet for the introduction of an aqueous medium into the cartridge and an outlet for discharge of a beverage produced from the one or more beverage ingredients, characterised in that the cartridge comprises an outer member and an inner member conjoined on assembly with the outer member, the inner member defining the outlet of the cartridge, wherein a snap-fit arrangement is provided to conjoin the outer member and the inner member on assembly of the cartridge wherein the inner member further comprises a skirt surrounding the outlet, the skirt comprising an upper extension having an upper rim which engages, on assembly of the cartridge, a co-operating formation of the outer member to form the snap-fit arrangement for conjoining the inner member to the outer member.