Vegetable Leaching Oil is a kind of vegetable oil which is produced by the process of oil extraction. The theoretical basis of the leaching process is the extraction principle. It originated in France in 1843. Vegetable Oil Leaching is a kind of safe, scientific and advanced technology. More than 90% of the total output of oil esters produced by leaching in developed countries. The advantages of Vegetable Oil Leaching are that the cake contains less residual oil, high oil yield, low processing cost and high economic benefit.