Abstract: A dispenser for dispensing a carbonated beverage comprising soda and at least one additive, the carbonated beverage dispenser comprising a compensator, the compensator comprising: an outer body defining a compensator chamber, an inlet, and an outlet, an inner body arranged within the compensator chamber and between the inlet and the outlet, wherein a gap is defined between the inner body and the outer body for regulating the flow rate of soda passing between the inlet and the outlet, and a control element configured to receive a user input from a user and to control the size of the gap in dependence on said user input, wherein, for a given user input, the control element moves the inner body relative to the control element to a first extent and the outer body relative to the control element to a second extent, the first extent being non-equal to the second extent.