What should be done to ensure cleanliness when opening the bar?

Ensuring cleanliness when opening the bar is crucial for maintaining a safe and inviting environment for patrons. Washing glassware is an essential step in this process because it directly affects the hygiene and presentation of the drinks served. Clean glassware helps to prevent the transfer of bacteria and contaminants to the beverages, ensuring that customers receive high-quality drinks. It also enhances the overall aesthetic of the bar, as patrons are more likely to enjoy their experience when presented with clean, sparkling glassware.

While other tasks, like checking the bank or filling sinks, are important for bar operations, they do not specifically address the cleanliness of the items that customers will use. Filling sundries is more about stocking supplies and does not directly relate to hygiene. Therefore, washing glassware stands out as the most relevant action for ensuring cleanliness at the start of the bar shift.