What is the extra thick standard for preparing drinks?

The extra thick standard for preparing drinks is achieved by adding extra ice to the blender. This technique ensures that the drink has a thicker consistency, which is especially important for blended beverages like smoothies or frost drinks. By increasing the amount of ice, the overall texture becomes denser, leading to a more satisfying drinking experience that aligns with customer expectations for a thicker consistency.

The other options, while they may alter the drink in different ways, do not contribute to achieving the extra thick texture as effectively as adding extra ice does. Doubling the amount of flavor might enhance the taste but would not affect the thickness of the drink. Using larger cups changes the serving size but doesn't impact the thickness either. Mixing ingredients longer could create a smoother blend but would not create the thickness needed. Therefore, adding extra ice stands out as the most effective method in this context.