En español | Coffee, tea, red wine and some soda can all stain your teeth and darken your smile. But there are some common foods that can actually help whiten your teeth over time. They’re not as thoroughly effective as professional teeth whitening products—but they are cheap and natural. And that should leave you smiling.
They may stain your shirt, but they could work to whiten teeth, since they contain an enzyme called malic acid. Try mashing up strawberries and rubbing them on your teeth. Leave for five minutes then rinse with water and brush and floss as usual.