The manufacturing process for ready-to-drink tea and coffee involves several important steps. First, the base ingredients (tea leaves or coffee beans) are carefully selected and processed to extract their flavors and aromas. The extracted tea or coffee is then mixed with water and sweeteners, if desired, in specific ratios. Afterwards, the mixture is pasteurized, filtered, and sometimes carbonated. Finally, the ready-to-drink tea or coffee is packaged in bottles or cans, labeled, and prepared for distribution to consumers.