Cleaning Pennies The cleaning power of taco sauce - bright, shiny pennies.  email to friend
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It's one of those things you hear about but wonder if it's true. Can you use taco sauce to clean the tarnish off of a penny? Believe it or not, taco sauce does a great job of cleaning pennies, but how does it work? Which ingredients in the taco sauce really do the cleaning? Eight-year-old Jack Spangler tackled these questions as part of his science fair project and made a surprising discovery.