What primary preparation method is shared among all listed drinks?

The primary preparation method that is shared among all listed drinks is brewing. Brewing is essential in the preparation of coffee and espresso-based drinks, which are core offerings at Starbucks. This method involves extracting flavors from coffee grounds or tea leaves using hot water.

When it comes to a variety of beverages served at Starbucks, such as brewed coffee, espresso shots, or even certain teas, the brewing method is consistently applied. For example, brewed coffee involves steeping ground coffee in hot water, while espresso is created by forcing hot water through finely-ground coffee to produce a concentrated shot.

Brewing is a foundational technique that sets the stage for countless variations and combinations, allowing baristas to create signature drinks. This unified preparation method is what allows establishments like Starbucks to ensure a consistent flavor profile and quality across different coffee beverages served to customers.