Various common beverages like vinegar, cola, citrus juice, and wine have acidic properties, registering around pH 2 to 3. When anything has a pH below 4, it can lead to the dissolution of calcium phosphate, which is essential for healthy tooth enamel. This phenomenon is known as demineralization, and it indicates that acidic drinks can potentially harm dental health.

Upon consumption of such acidic beverages, one might experience a quick physiological response, characterized by the arrival of parotid saliva. This saliva serves as a natural remedy, helping to neutralize the acidity and restore the mouth's pH to a safer level, aiding in the protection of tooth enamel.