Apparatus for the preparation of aerated drinks, comprising: an aerator stage comprising: a removable aerator bottle defining a chamber for receiving a liquid to be aerated; an aerator bottle interface operative to engage the removable aerator bottle and seal the chamber thereof; a gas inlet line operative to fluidly connect a gas source to the aerator bottle interface; and a gas supply mechanism for controlling supply of gas from the gas source to the aerator bottle interface via the gas inlet line; an aerated liquid dispenser stage comprising: an aerated liquid dispenser outlet; a liquid outlet line operative to fluidly connect the aerator bottle interface to the aerated liquid dispenser outlet to allow aerated liquid to flow from the chamber of the removable aerator bottle to the aerated liquid dispenser outlet; and a liquid flow controller for controlling discharge of aerated liquid from the removable aerator bottle to the aerated liquid dispenser outlet via the liquid outlet line; and a flavouring liquid dispenser stage comprising: a flavouring liquid dispenser comprising a flavouring liquid dispenser outlet, wherein the flavouring liquid dispenser comprises a flavouring liquid dispenser mechanism that is activated by gas pressure; and a gas outlet line including a gas outlet provided in the aerator bottle interface; characterised in that the apparatus further comprises a pressure control stage comprising: a gas reservoir connected to the gas outlet line and operative to store pressurised gas received from the removable aerator bottle during an initial aeration step; and an exhaust mechanism operative to vent gas from the removable aerator bottle during a subsequent venting step in order to lower the level of gas pressure in the removable aerator bottle prior to discharge of the aerated liquid from the removable aerator bottle via the aerated liquid dispenser stage. an aerator stage comprising: a removable aerator bottle defining a chamber for receiving a liquid to be aerated; an aerator bottle interface operative to engage the removable aerator bottle and seal the chamber thereof; a gas inlet line operative to fluidly connect a gas source to the aerator bottle interface; and a gas supply mechanism for controlling supply of gas from the gas source to the aerator bottle interface via the gas inlet line; a removable aerator bottle defining a chamber for receiving a liquid to be aerated; an aerator bottle interface operative to engage the removable aerator bottle and seal the chamber thereof; a gas inlet line operative to fluidly connect a gas source to the aerator bottle interface; and a gas supply mechanism for controlling supply of gas from the gas source to the aerator bottle interface via the gas inlet line; an aerated liquid dispenser stage comprising: an aerated liquid dispenser outlet; a liquid outlet line operative to fluidly connect the aerator bottle interface to the aerated liquid dispenser outlet to allow aerated liquid to flow from the chamber of the removable aerator bottle to the aerated liquid dispenser outlet; and a liquid flow controller for controlling discharge of aerated liquid from the removable aerator bottle to the aerated liquid dispenser outlet via the liquid outlet line; and an aerated liquid dispenser outlet; a liquid outlet line operative to fluidly connect the aerator bottle interface to the aerated liquid dispenser outlet to allow aerated liquid to flow from the chamber of the removable aerator bottle to the aerated liquid dispenser outlet; and a liquid flow controller for controlling discharge of aerated liquid from the removable aerator bottle to the aerated liquid dispenser outlet via the liquid outlet line; and a flavouring liquid dispenser stage comprising: a flavouring liquid dispenser comprising a flavouring liquid dispenser outlet, wherein the flavouring liquid dispenser comprises a flavouring liquid dispenser mechanism that is activated by gas pressure; and a gas outlet line including a gas outlet provided in the aerator bottle interface; a flavouring liquid dispenser comprising a flavouring liquid dispenser outlet, wherein the flavouring liquid dispenser comprises a flavouring liquid dispenser mechanism that is activated by gas pressure; and a gas outlet line including a gas outlet provided in the aerator bottle interface; characterised in that the apparatus further comprises a pressure control stage comprising: a gas reservoir connected to the gas outlet line and operative to store pressurised gas received from the removable aerator bottle during an initial aeration step; and an exhaust mechanism operative to vent gas from the removable aerator bottle during a subsequent venting step in order to lower the level of gas pressure in the removable aerator bottle prior to discharge of the aerated liquid from the removable aerator bottle via the aerated liquid dispenser stage. a gas reservoir connected to the gas outlet line and operative to store pressurised gas received from the removable aerator bottle during an initial aeration step; and an exhaust mechanism operative to vent gas from the removable aerator bottle during a subsequent venting step in order to lower the level of gas pressure in the removable aerator bottle prior to discharge of the aerated liquid from the removable aerator bottle via the aerated liquid dispenser stage.