Soya bean oil is a vegetable oil extracted from the seeds of soya bean. It is one of the widely consumed cooking oils. Before extraction of crude oil, soya seed passes through many intermediate process like seed cleaning, cracking of seed, cooking of seed & lastly flaking & drying of oil bearing material. This material carrying to extraction plant where it comes in contact with highly volatile inflammable solvent hexane in counter flow circuit. In the distillation unit at different temperatures crude oil & hexane get separated. Soya crude oil is further refined and after removal of impurities, the same is made fit for human consumption.