Water dispenser

A method for operating a water dispenser, the water dispenser having a water supply, a carbon dioxide supply independent from the water supply, an outlet for pouring water saturated with a saturation degree (D) of carbon dioxide into a container placed below the outlet, a controller and a user interface, the method comprising the following steps, which are executed in response to an activation of the water dispenser via the user interface:

• determining a nominal value of a water volume (V) that is to be filled into the container;
• determining a nominal value of a waiting period (WP) using the controller;
• determining nominal values of a first partial volume (V1) and a second partial volume (V2) with V1+V2=V using the controller, in particular by determining a volume ratio (R) with R=V1/V for dividing the water volume (V) into the partial volumes (V1, V2);
• pouring the first partial volume (V1) through the outlet;
• waiting through the waiting period (WP);
• and
• pouring the second partial volume (V2) through the outlet, and
• wherein the waiting period (WP) and the volume ratio (R) are determined on the basis of at least the saturation degree (D) of carbon dioxide in the water volume (V).