What is the purpose of the frapp roast in frappuccinos?

Frapp roast serves a vital role in frappuccinos by providing the distinct coffee flavor that is essential to the drink. This concentrated coffee base ensures that each frappuccino maintains the rich, bold taste that Starbucks is known for, even when blended with ice and other ingredients. The inclusion of frapp roast helps balance the sweetness and creaminess from added flavors and syrups, creating a well-rounded beverage. Coffee flavor is a fundamental characteristic of frappuccinos, making frapp roast indispensable in achieving the desired taste profile. Without it, the drink would lack the authentic coffee essence that many customers expect when ordering a frappuccino.