Ktc - Vegetable Oil 3 LitreVegetable oil is typically a blend of several different oils, including palm, soybean, sunflower and corn. The ingredients in vegetable oils usually come from plants that are grown in genetically modified varieties so this product is usually classed as GM.Vegetable oil is probably the most well-known and used oils within the catering industry, it is very versatile and can be used for all types of cooking.Vegetable oils are usually refined for use in cooking giving them a relatively high smoke point of 440 degrees.