What Is the Acidity Level of Orange Juice?

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What Is the Acidity Level of Orange Juice?
Orange juice's acidity level is anywhere between 3.00 and 4.50. (Thinkstock/Comstock/Getty Images)

Orange juice is one of the world's most popular juices, according to the Drink Secrets website. Produced by extracting the natural juice from the orange fruit, orange juice is high in vitamin C, which causes its high acidity level. Because they grow in many countries, oranges have a variety of uses in different parts of the world. Its fruit juice can be served as it is or used as part of a juice blend, cocktail or tea or even as an ingredient for many food recipes.

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Orange Juice Acidity Level

Foods and drinks vary in their pH levels. Generally, they are either acidic or alkaline. In the case of citrus drinks like the orange juice, its acidity generally ranges from 3.00 to 4.50. This pH mainly comes from the citric acid found in the orange. The difference in orange juice's acidity depends on how concentrated it is. Orange juice that is significantly watered down will have a lower acidity level.

Comparison with Other Citrus Juices

Other common juices vary in their pH levels as well. For instance, the pH level of apple juice ranges from 3.35 to 4.00. The pH level of pineapple juice ranges from 3.30 to 3.60. Prune juice ranges from 3.95 to 3.97, lemon juice from 2.40 to 3.00, lime juice from 2.00 to 2.35 and grapefruit juice from 2.90 to 3.25. Interestingly, some fruit juices like the orange and lemon juices may be acidic in their natural states, but they actually turn alkaline after the body metabolises them.

Benefits of Orange Juice

Orange juice's nutritional values vary depending on how it is processed and served. Besides vitamin C, orange juice can also provide part of a person's daily requirement for calories, fibre and sugar. The citric acid in orange juice may also help the immune system in fighting infections.

Effects of Drinks' Acidity Levels

As a general comparison, orange juice with a pH level of 3.00 is about nine times less concentrated than the gastric juice in the stomach, which has a pH level of about 1.40. However, according to the WebMD website, too much acidity coming from citrus drinks can aggravate symptoms of heartburn and acid reflux. For people suffering from these problems, even an intake of a small quantity of orange juice results in a significant increase of acid in the stomach and oesophagus. If not regulated or attended to right away, it may later become a more serious health issue.

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