New Delhi, Nov. 4 -- We clean our kitchen sinks, gas stove and countertops because we know how messy they get. But the handy coffee machine that fuels our mornings rarely gets the same attention. From South Indian filter coffee makers to fancy espresso machines and travel mugs, moisture and leftover coffee grounds create a perfect space for germs to grow.

Researchers have found harmful bacteria like E. coli and Staphylococcus thriving inside poorly maintained brewing equipment. That means your comforting cup could be hiding a not-so-comforting secret. With a few simple cleaning habits and the right products, you can keep your daily coffee safe and tasting great.

Spot any of these in your coffee mug or coffee machine? You need to clean i...