Edible oil is an indispensable part of People’s Daily diet , it is one of the three main nutrients supply for human body heat energy, and it is the essential fatty acid and an important source of fat-soluble vitamins and phosphor fat for human,.Food cannot be cooked,or Fried without oil.<\/p>\n
Grease \u00a0are cooked at high temperatures, which can reduce their nutritional value, such as vitamin A, carotene, vitamin E and essential fatty acids\u00a0are all destroyed . the\u00a0unsaturated fatty acids in oil\u00a0will produce polymerization by high temperature heating , especially the oil that has passed through high temperature repeatedly. Which\u00a0has certain toxic effects and contains carcinogenic substances.Therefore, when cooking\u00a0the\u00a0temperature of oil should not be too high, and reduce the number of times of repeated use, it should be added the unused when use the\u00a0used oil again,<\/p>\n