An appliance for dispensing a beverage is disclosed. The appliance has a housing that defines an inner space for a beverage keg. The keg extends along a gravitational direction, X1, parallel to the gravity field, from a top position to a bottom position, wherein the top position is higher in the gravity field than the bottom position when the appliance is in use. A pressure unit pressurizes the interior of the keg. A tap unit dispenses beverages from the keg driven by pressure. A cooling unit cools the beverage in the keg. The cooling unit is suitable for cooling a specific cold area of the keg's outer wall to a temperature lower than any other point of the keg. The cold area of the keg is located in the top third portion of the keg according to the X1 direction.