<Tr> <Th> Unsaponifiable </Th> <Td> 0.3% - 1.6% </Td> </Tr> <Tr> <Th> Peroxide value </Th> <Td> 2.92 mequiv / kg </Td> </Tr> <P> Grape seed oil (also called grapeseed oil or grape oil) is pressed from the seeds of grapes, and is thus an abundant by - product of winemaking . </P> <P> Grape seed oil has a moderately high smoke point of approximately 216 ° C (421 ° F). Due to its clean, light taste, and high polyunsaturated fat content, it may be used as an ingredient in salad dressings and mayonnaise and as a base for oil infusions of garlic, rosemary, or other herbs or spices . It is widely used in baked goods, pancakes, and waffles . It is sprayed on raisins to help them retain their flavor . </P>

What is grape seed oil made out of