Starbucks Shortchanges Venti Drinkers on Caffeine, Suit Says (1)

Starbucks Corp. cheats consumers on caffeine in the largest size of some of its espresso drinks, including Pumpkin Spice Latte and Cappuccino, a new lawsuit filed in a California federal court alleges.

Starbucks offers three sizes of espresso beverages: tall (smallest size), grande (medium Size), and venti (largest size).

Consumers expect that as the drinks increase in size, so too does the amount of coffee or espresso, and correspondingly, the caffeine, Teresa Adams alleges in her proposed class suit in the U.S. District Court for the Central District of California.

But while the grande-sized drinks have more caffeine than the ...