After testing a wide range of Keurig coffee makers, not only did they uncover mold and bacteria, but they also discovered a plethora of other incredibly deadly bacteria, ranging from staphylococcus to streptococcus, all the way to pseudomonas aeruginosa and even E. Coli.
Thirty-eight percent of coffee drinkers are now using single serve coffee makers like the Keurig. With the tank that fills with water, and a compartment that holds a K cup, KDKA-TV’s Susan Koeppen decided to see what sort of bacteria is lingering on and in these machines.
“I’m nervous to find out what’s inside there,” says Amanda Busch who owns a Keurig.
She agreed to let us swab her machine and send it off to a lab. We also took samples from eight other machines, and our CBS sister stations in Dallas and Chicago tested 20 more.
In the end, Busch’s machine came back with 4.6 million colonies of bacteria and mold.
“It makes me want to cry,” says Busch.