Q: Why is dipotassium phosphate added to Oatly Oat Drinks, including the Barista Edition, Skinny, Semi and Whole? Can you confirm that it’s safe?
A: Due to its buffering properties, dipotassium phosphate is frequently used as an ‘acidity regulator`. It's used particularly to prevent acidic coffee (with its low pH) from lowering the pH of coffee drinks to a degree that would result in the 'feathering' (splitting or precipitation) of the plant-based milk.
It's an approved additive within the EU as well as numerous other countries (including the USA, where the FDA has granted it GRAS [Generally Recognised As Safe] status).
You can find more information on the phosphate content of Oatly products (here)