An edible oilrefinery involves refining soybean andpalm oils for edible use. Edible vegetable oils are used in a widevariety of applications, from cooking to biofuels, depending on theirchemistry. These processes require specialized refinery equipment to processthem into finished products that can be used commercially or sold on storeshelves. For instance, while soybean oil can be used as a frying medium orblended with ethanol to produce biodiesel fuel, a different process must beapplied to turn it into lecithin.