People have been using milk or cream to mellow the bitter tannins of black tea for centuries. In the nineteenth century, the British began complementing their afternoon teas, brewed using Indian leaves, with milk and sugar; in the Himalayas, nomadic people still add yak butter or yak milk, following time-honored habits.
For the first two weeks, he kept exceeding the delivery window set by the algorithm, so the system deducted penalties from his account—sometimes beyond what he was paid for the order. “Chinese customers’ expectation for speedy delivery could never be met in the U.S.,” Yang Fan, a professor of media and globalization at the University of Maryland, Baltimore County, said. “If they visit America, they’d think things are so backward.