Generally speaking, the properties of cereals, such as noodles, will change when they are fried. From the point of view of traditional Chinese medicine, it has the functions of promoting digestion, promoting qi circulation and stopping diarrhea. In other words, they are edible and have certain therapeutic effects. When meat is burnt, it will produce toxins and carcinogens. Therefore, burnt meat is inedible.
After the fried rice is ground into powder, it can be brewed and taken to treat infantile diarrhea. It is a common folk prescription, simple and easy to operate. This is actually equivalent to carbon adsorption, although it is not activated carbon. The production process of activated carbon is that raw materials are carbonized at 500℃, and then activated by steam at 800-900℃.
Many herbs are fried to help digestion. Jiao Sanxian (stir-fried hawthorn, stir-fried malt and stir-fried medicated leaven) is a well-known formula for treating dyspepsia. After brown rice sprouts (rice and wheat) are fried, they can eliminate food accumulation and transform meat.
The burnt food in protein will produce some harmful substances. Pure fiber, fat and starch will not produce toxic substances when burned, but protein will produce a variety of carcinogens, mainly chemical changes of amino acids. Especially when burned with fat, the content of benzopyrazine and heterocyclic amine will increase a lot, and these two substances are strong carcinogens, which are easy to cause esophageal cancer and gastric cancer.
Smoked meat contains high concentration of benzo (a) pyrene. There is more benzopyrene in a pound of grilled steak than in the smoke from 300 cigarettes.
Does the intake of charred black matter reach the carcinogenic level? Occasionally, I will eat the burnt matter on the barbecue, so don't worry too much. The human body has a powerful DNA damage repair mechanism. But once the repair limit is exceeded, it will lead to irreversible diseases and even cancer. Bian Xiao also likes barbecue, but generally he will choose smokeless barbecue, or remove the burnt part, or not eat at all. This way, you can enjoy the food without hurting your health.
Cooking temperature is generally below 200℃, which will not produce carcinogens. If the food is fried, the temperature has reached about 400℃.
Therefore, it is best to cook food by boiling and steaming. When frying food in an oil pan, pay attention to stir fry to avoid overheating the bottom of the pan and burning the food. Especially when baking foods rich in fat and protein, we should pay more attention to controlling the temperature.
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