In some parts of the U.S., Starbucks is testing a latte flavored with roasted-stout notes along with its seasonal autumn drinks such as the Pumpkin Spice Latte, seen here at front. Starbucks hide caption

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A pot of tea sits at the newly opened Teavana tea bar in New York City. Spencer Platt/Getty Images hide caption

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In India, Starbucks will have to compete with this locally-owned coffee chain, Cafe Coffee Day. Aijaz Rahi/AP hide caption

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