MIAMI, FL - MARCH 05: A Keurig coffee maker is seen for sale on a store shelf on March 5, 2015 in Miami, Florida. John Sylvan the inventor of the popular Keurig K-Cups is reported to have said that he regrets making the non-recyclable, single-serve coffee pods, because they are bad for the environment. (Photo by Joe Raedle/Getty Images)
