“It’s the best expression of a cold plastic cup.” Starbucks says Frappuccinos and other cold drinks now account for 75% of its U.S. beverage sales, up from 37% in 2013.

Starbucks cups are made out of polypropylene, or No. 5 plastic, and Landers told CBS News that these cups are designed to be recyclable and there are facilities that do this in the U.S. CBS News ...