What is the defining characteristic of a Venti mocha's syrup quantity compared to a Tall mocha?

In a Venti mocha, the defining characteristic is that it contains more syrup compared to a Tall mocha. The Venti size is larger, allowing for a greater quantity of ingredients, including the mocha syrup. Specifically, the Venti size typically includes 4 pumps of mocha syrup, while the Tall size includes only 3 pumps. This increase in syrup quantity is what enhances the flavor and richness of the beverage in the larger serving. Understanding the sizing and ingredient adjustments in Starbucks beverages is crucial for customizing drinks according to customers' preferences, which is a fundamental aspect of working at Starbucks.