With frequent use, your espresso machine or coffee maker can build up limescale, calcium carbonate and general gross gunk, affecting the longevity of the machine and the taste of your morning cup.

Ready for a chilling reality? If you own a countertop ice maker, there’s a good chance it’s harboring a cocktail of gunk you’d rather not think about: mineral buildup, mold, mildew, and bacteria. But ...

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