Service beverage is a term used to describe any type of beverage that is served in a restaurant, cafe, or other food service establishment. The crossword solutions for the term SERVICE BEVERAGE are TEA, which is a hot beverage made from the leaves of the Camellia sinensis plant. TEA is one of the most popular beverages in the world and has been consumed for centuries. It is often served with milk, sugar, or other flavorings.