American are spending more money on coffee than ever before, but for the first time in six years,they will be drinking less of it as the single-serve revolution transforms the brewing habits of the world's largest coffee-drinking nation.
Ownership of single-serve brewers has ballooned in 2015, with more than a quarter of American household having one, up from just 15% in 2014, a National coffee Association (NCA) survey in March showed.