37 Jin. The usage of shortening shows that the correct proportion of soybean oil and shortening is 1 ratio 1, and 37 kg of shortening should be put in soybean oil. Shortened oil, the raw material oil for food processing, refers to the refined animal and vegetable oil, hydrogenated oil or the mixture of the above oils and fats, which is a solid oil after quenching and kneading, or a solid or fluid oil product without quenching and kneading.