What is the most acidic fruit in the world?

What is the most acidic fruit in the world?

The most acidic fruit in the world is kielo, i.e. pomegranate. Kielo is a small red fruit that grows in tropical and subtropical climates. Its acidity level is usually pH 2-3, making it one of the most acidic fruits in the world.

Kielo’s acidity is due to its high citric acid content. Citric acid gives the fruit a tangy taste and makes it very sour. Kielo is often used in cooking and drinks to give acidity and flavor.

Source: Wikipedia