What is the best way to adding citric acid and others to palm oil during storage and transportation?

Palm oil and palm oil expeller

Citric acid and other anti-oxidants arebest-added on-line at the cooling stage after deodorization i.e. attemperatures of 120ºC or lower. It is important to ensure complete dispersionand dissolution of antioxidants in the oil by the incorporation of a staticmixer in the line. Citric acid is of course acidic, and therefore if it is notproperly mixed, the build-up of localized concentrations could be detrimentalto the tank coatings or to mild steel tank walls.