Keurig machines have made the morning coffee routine so simple that it's easy to forget that they do require occasional maintenance.

Your Keurig is designed to make coffee faster and easier than almost any other method -- but that convenience comes with a tradeoff most owners don't think about until something starts tasting off.

Add Yahoo as a preferred source to see more of our stories on Google. Credit: John_Kasawa If your brew is a little blah, perhaps your coffee maker is due for a cleaning. We tend not to clean them as ...