A package for a portion of liquid foodstuff dilutable with a diluent includes a reservoir for containing a portion of liquid foodstuff dilutable with a diluent, a reservoir seal for closing the reservoir, a mixing element for mixing the dilutable liquid foodstuff with the diluent. The mixing element includes a mixing chamber having an outflow aperture for dispensing liquid foodstuff diluted with the diluent, a liquid passage for feeding dilutable liquid foodstuff from the reservoir to the mixing chamber, and a feed channel for feeding diluent to the mixing chamber. The feed channel has a first portion and a second portion, the cross section of the second portion being smaller than the cross section of the first portion and be so configured that when diluent is fed to the mixing chamber, a venturi effect occurs in the mixing chamber.