Crude palm oil is generally not degumming processing alone, although phosphorus is low (usually less than 20 parts per million (PPM), but it better to add 0.05% phosphoric acid before decolorizing, which helps to improve the stability of the refined oil and Fried resistance.
Specifically, add a mixer before oil into bleaching tower, then mixed with certain proportion of phosphoric acid or citric acid according to the feeding flow, fully mixing into bleaching tower ,and it not enough if we only use clay to do the degumming.
