A couple of decades ago, everyone was fried in oil "with a smell" that was not purified. Most people did not know any other vegetable oil. Now there is an opinion that it is impossible to fry in such oil. The selection of oils in grocery stores has become very wide nowadays. And now you can often find an insistent recommendation that you need to fry only in refined, refined oil. And use unrefined oil in salads and other ready-made dishes.
First, let's define why such recommendations are given. They are given, as a rule, so that our food is useful. In this case, there should be no talk of frying, in principle. Because, whatever the oil, at high temperatures it emits harmful substances. And the difference in the properties of oils during frying, whether refined or unrefined, does not play a big role.
Frying produces trans fats. This, in turn, leads to vascular occlusion, atherosclerosis. Atherosclerosis is far from the only threat of eating foods after frying. Alzheimer's disease, Parkinson's disease and cancer can also occur.
Most housewives do not reuse oil at home. But if we are talking about the production of goods on an industrial scale or about public catering establishments, then the situation is completely different there. And in this case, products processed with oil, which is used repeatedly, are toxic and very harmful to health.
The difference between homemade food and catering products is significant. But in any case, food that has undergone the fried process is not healthy. If we are talking about a process when a ruddy, golden crust is formed on food products, then we are undoubtedly talking about a high temperature. When oil is heated to such high levels, mutagens are formed that adversely affect the DNA of cells.
It is quite another matter when we are talking about such methods of cooking as stewing, simmering or steaming with the addition of oil. Because at a low temperature, up to one hundred and fifty degrees, the beneficial acids contained in the oil are not destroyed and carcinogens are not formed. If the temperature is higher, harmful substances are released. And it makes no difference which oil to use.
