Dunkin' is the latest restaurant chain ... putting the foam cup around the outside of a cold drink plastic cup. The new double-walled paper cups are lined with plastic to help keep the hot coffee ...

Sales of Dunkin' Donuts K-Cups are crashing. The brand's K-Cups, which are plastic pods for Keurig single-serve coffee brewers, are doing worse than competitors' products, writes Venessa Wong at ...