Italians live by the rule of 15: 1  Use coffee beans within 15 days of roasting. 2  Use ground coffee within 15 minutes of grinding. 3  Drink coffee within 15 seconds of brewing.
The good news is that teeth (and bones) are able to heal themselves in a process called remineralization. Basically, specialized cells in the center of the tooth are able to regenerate dentin, the layer of tooth just under the enamel, and the enamel can then properly remineralize from the outside.
A answered. Teeth erode when the hard enamel on your tooth is attacked by acid. In general, the saliva in your mouth is enough to protect your teeth after you eat acidic food. Eating a lot of food or drinking fluids with high amounts of acid will remove mineral from the surfaces of teeth.