The fresh local non-GMO soybeans are selected from that year and go through the six processes of cleaning, specific gravity, stone removal, soil removal, tower selection, and hand selection to preserve clean and nutritious watercress to ensure the quality of soybean oil. Low-temperature cold-pressed oil, rejects chemical leaching oil, has no chemical residues, retains nutrients such as vitamin E and linoleic acid, no artificial additions, physical squeezing, and locks marketing ingredients.