Tea and Coffee

A cup of coffee or tea in the morning provides you with the energy you need, but it may also discolor your teeth yellow or brown.

Tannins are a class of astringent, polyphenolic biomolecules found in coffee and black tea. They are known as slightly acidic compounds that give black coffee and tea its bitter flavor. The tannins' acidity can decimate at the enamel layer, weakening your teeth. According to the American Dental Association, after drinking coffee, you should wait 30 to 60 minutes before brushing your teeth. Brushing after that can occasionally exacerbate the acidity of coffee's eroding impact. You can drink water after your coffee instead of cleaning your teeth immediately away to neutralize the acid in your mouth.