Starbucks's Sweet Milk Coffee has recorded 500,000 cups sold in South Korea within just three weeks of its launch, the company announced. A promotional image for Starbucks Korea’s newly launched Sweet Milk Coffee According to Korea JoongAng Daily , the drink, previously available only in the Japan market, had already attracted strong interest among South Korean customers ahead of its Feb. 26 debut. Sweet Milk Coffee features a smooth and mellow flavor, created by blending dri