Beer is produced through the brewing process of steeping and drying barley, mixing it with water and hops, boiling and fermenting the mixture with yeast. It is then clarified, stored, filtered and packaged. Beer is available in draught or packaged forms and comes in various strengths. Boutique beers are produced in smaller batches and have unique characteristics, while commercial beers are mass-produced by large breweries. Some beers are infused with citrus flavors like orange, lemon or lime. Non-alcoholic beverages include teas, coffees, juices and soft drinks. The roles of wait staff involve serving food and drinks to guests and clearing tables, while bar staff prepare and serve drinks from