Can linseed oil be used for cooking? Many people think it can't, because linseed oil is rich in unsaturated fatty acid α -linolenic acid, which is essential for human body. High temperature will destroy α -linolenic acid.
That's true, but does cooking have to be spicy?
Therefore, leaving the cooking temperature and saying that linseed oil can be cooked is "playing hooligans".
Flaxseed oil can't be scalded, but it doesn't mean flaxseed oil can't be boiled. The most important thing here is the temperature.
Experiments of Tianjin Key Laboratory of Food and Biotechnology and other institutions have proved that α -linolenic acid in linseed oil decreased at 120℃, and when the temperature reached 240℃, α -linolenic acid decreased by 82.56%. At the same time, when the oil temperature exceeds 160 degrees, trans fatty acids harmful to human body will be produced. When the oil temperature exceeds 240 degrees, α -linolenic acid will produce four trans fatty acids.
Therefore, the suitable temperature of linseed oil is below 120℃, and the highest temperature cannot exceed 160℃.
But the oil temperature meter is rarely used in daily family cooking, so how to grasp the oil temperature? Cookies often say that a few percent of hot oil is practical. Generally speaking, the oil temperature is about 23 degrees, and 120 degrees is fried with 4-50% oil temperature. The oil surface at this temperature is silent and smokeless, the oil surface is relatively calm, and there are a few bubbles around when the vegetables are cooked.
Of course, if you don't know how hot it is, the easiest way is to boil the pot and pour the oil. Pour the oil and stir-fry directly.
In addition to the common cooking methods, you can also use the "water-oil method" of cooking at room temperature. First, add a proper amount of water to the pot, and then boil the water and pour in the oil. Water can reduce the oil temperature to about 100℃, and it can also ensure that the temperature of linseed oil will not rise too high and the nutrients will not be destroyed.
Cooking at room temperature can not only retain the nutrients in oil, but also retain the nutrients in vegetables. After all, nutrients such as vitamin C will be destroyed by high temperature. Kill two birds with one stone, why not?
So frying linseed oil at room temperature is no problem, and it is a very healthy and nutritious cooking method.