What does the term "barista" refer to?

The term "barista" specifically refers to a person trained in making coffee and serving beverages. This role encompasses a variety of tasks, including brewing coffee, preparing espresso drinks, steaming milk, and providing excellent customer service. Baristas often have a deep understanding of different coffee beans, brewing methods, and flavor profiles, which allows them to create a high-quality beverage experience for customers.

The other options focus on roles not directly tied to the preparation and service of coffee. A person who grows coffee beans is typically referred to as a coffee farmer or producer, while a coffee shop owner would be involved in managing the business aspect rather than preparing drinks. A customer at a coffee shop interacts with the barista but does not hold the same responsibilities or skills associated with the art of coffee making. Hence, the essence of the barista's role is accurately captured in the choice that highlights their training in the preparation and serving of coffee and related beverages.