For a Venti teavana shaken iced blackberry mojito tea, how many pumps of blackberry syrup are used?

For a Venti Teavana Shaken Iced Blackberry Mojito Tea, the standard amount of blackberry syrup used is 6 pumps. This quantity is based on the size of the drink; a Venti is the largest size offered at Starbucks, which typically requires more syrup to ensure the flavor is adequately balanced with the larger volume of iced tea.

The practice of using 6 pumps for a Venti is consistent with Starbucks' approach to maintaining flavor integrity while catering to the varying sizes of their beverages. This is important to achieve the intended taste profile that customers expect from this refreshing, fruit-infused drink.