Coffee Makers
Dark and damp, the reservoirs of coffee makers are perfect breeding grounds for microorganisms. Fifty percent of reservoirs swabbed for the study had mold and yeast, and nine percent had coliform bacteria.
Cleaning tip: Read the instruction manual. One good cleaning technique is to add four cups of vinegar to the reservoir, let it sit for 30 minutes, and then brew that vinegar. Then run two or three cycles of fresh water through the coffeemaker until the smell is gone.
