Walnut oil can't be heated at high temperature, so it can't be cooked, because it contains a lot of unsaturated fatty acids, which are nutrients in walnut oil. The unsaturated fatty acids in walnut oil will lose their nutrition and efficacy by heating at high temperature, so walnut oil cannot be heated, but walnut oil can be used for cold salad.
Unsaturated fatty acids in walnut oil are not very stable as a whole, and some carcinogens are more likely to be released at high temperature, which will be harmful to health if eaten for a long time. Therefore, in order to avoid heating, walnut oil can also be added to the beverage for brewing, which can be drunk with milk or juice. At the same time, walnut oil can also be used as a condiment. As long as it is added to the noodle soup, the taste will be improved to many levels.
If you want to use walnut oil, you can also cook it at low temperature, or you can smear walnut oil on bread slices, so that the nutrients of walnut oil will not be lost and the human body will absorb these nutrients to the maximum extent.