Flavor and additive delivery systems and methods for beverage dispensers are disclosed. An example beverage dispenser includes flavor containers configured to contain flavor mixtures, a manifold configured to blend water with flavor mixtures, a flowrate sensor configured to detect a current flowrate of the water flowing to the manifold, memory configured to store instructions related to dispensing the water and the flavor mixtures, and a processor. The processor is configured to receive a request for a selected beverage, identify a ratio between the water and one or more of the flavor mixtures for the selected beverage, transmit a water control signal to cause the water to flow at a requested water flowrate, and transmit one or more first flavor control signals to cause one or more of the flavor mixtures to flow from the flavor containers based on the ratio.