What is one of the main responsibilities of a barista at Black Rock Coffee Bar?

One of the main responsibilities of a barista at Black Rock Coffee Bar involves preparing and serving coffee drinks. This role is fundamental to the café's operation, as it directly relates to delivering the primary service that the business provides—quality coffee. Baristas must master various brewing techniques, understand different coffee blends, and be able to craft a wide range of beverages, including espressos, lattes, and specialty drinks. This responsibility not only requires technical skill but also a focus on customer service, as baristas often interact directly with customers, tailoring drinks to their preferences and ensuring a pleasant experience.

The other options, while relevant to the overall function of a café, do not pertain to the core duties directly assigned to a barista. Supervising employees and managing finances are typically responsibilities held by management personnel or team leaders, while developing new recipes may be more suited for a creative role within the company focused on innovation, rather than the everyday tasks of a barista. The emphasis on preparing and serving drinks highlights the essential role baristas play in the success of Black Rock Coffee Bar.