BEST DENTIST IN ANNA NAGAR! To appreciate the significance of this highly acidic drink, a quick review of your science class is necessary. Whether a substance is acidic, neutral or alkaline is based on its concentration of hydrogen ions. Its “pH” (potential for hydrogen) is measured on a 14-point scale. Most municipal tap water comes in at a neutral 7.0 and human blood is slightly alkaline at 7.33. Many prepared beverages tend to be on the acidic side of things: Coffee 4.0 Orange Juice 3.8 Black Tea 3.0 Wine 3.4 Cola drinks 2.37 Lemon juice 2.0 Stomach acid is even more acidic at 1.0 and is comparable to the acid in your car’s battery! Most energy drinks have a pH similar to classic cola drinks.