It might not technically be spooky season yet, but stores are already getting ready for Halloween by unleashing hordes of thematic chocolate. Enjoying these time-sensitive sweets while you can is a tasty way to boost mid-year morale. However, go too crazy with the chocolate and you could end up staining your teeth with tannins!
What are tannins, and how do they discolor otherwise pearly whites? Keep reading to find out.
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