The Cooking Oil Leaching method is suitable for most oil production, especially those oil seeds with high nutritional value but low oil rate, due to the superiority of modern Cooking Oil Leaching process, so it is widely used in oil producing process, about 90% of the world's oil is produced by Cooking Oil Leaching method.

Leaching oil is mostly colorless, tasteless, and can retain the special nutrients in raw materials,such as oryzanol in the rice bran oil.