The stakes couldn't be higher for Keurig Green Mountain, which stumbled with Keurig 2.0 coffee machines after consumers discovered the devices use a scanner to lock out coffee pods made by other brands. Late last year, Keurig also recalled its Mini Plus brewer because of a burn hazard. The company's dismal earnings report comes after an earlier guidance cut this year. How single-serve coffee became a "must-have" 02:54