What is the 1,2,3,4 rule in relation to fountain drinks?

The 1,2,3,4 rule in relation to fountain drinks refers to the guideline for adding flavor shots based on the size of the drink. This rule establishes a specific number of pumps of flavor that you should add depending on the size of the cup being used. For instance, if a smaller cup size requires one pump, a medium cup would require two pumps, a larger size would need three, and the largest size would warrant four pumps of flavor. This structured approach ensures consistency in the taste of the beverages being served, as it standardizes the flavor contribution relative to the amount of liquid in each drink size.

The other choices do not accurately capture the essence of the rule. For example, while the amount of ice is related to the final drink’s volume and preference, it does not define how flavors are added. The size of the cup is a relevant factor, but the rule specifically pertains to the quantity of flavor pumps rather than just size alone. Additionally, the number of drinks served does not play a role in the 1,2,3,4 rule, as it is more focused on the flavor-to-size relationship for individual drinks rather than the volume or quantity served.