Author:  Mary Roach
Viewed: 87 - Published at: 8 years ago

Vinegar, cola, citrus juice, wine, all are in the acid range of the pH scale: from around pH 2 to 3. Anything under pH 4 will dissolve calcium phosphate, a key component of tooth enamel. The process is called demineralization. Take a drink of anything acid, and if you are paying attention, you will notice a sudden warm slosh: parotid saliva arriving like the cavalry to bring the pH back up to the safe zone.

( Mary Roach )
[ Gulp: Adventures on the ]
www.QuoteSweet.com

TAGS :