Which has higher acidity Orange juice ,grape juice or pineapple juice?

The pH scale measures the level of acidity. Based on a range of zero to 14, a pH of 7 is neutral, while zero is the most acidic. The lower the pH score, the more acidic the juice.Juices made from cranberries, lemons and limes are the most acidic. They rate between 2 and 2.8 on the pH scale, which explains why they’re so bitter that they need to be mixed with water and sweeteners.The fruits often used to make juice -- apples, oranges, pineapples, peaches, pears, strawberries and blueberries -- all have about the same level of acidity, with pH scores ranging from 3.3 to 4.6. If your juice includes some bananas, the acidity may be neutralized a little because their pH level is 4.5 to 5.2.

Orange juice ranges in pH from 3.3 to 4.19. It has 122 calories, 139 percent of the DV for vitamin C, 12 percent of the DV for folate and 13 percent of the DV for potassium per cup. Its effect on tooth enamel, however, isn't clear. The study published in the "Journal of the Indian Society of Pedodontics and Preventative Dentistry" found that it didn't have an erosive effect on enamel, but another study, published in the "Journal of Dentistry" in March 2006 found that it significantly decreased the hardness of tooth enamel.

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