Rotten, burnt and baked food contains a lot of carcinogens, which is harmful to health. So fried peanuts should contain some carcinogens, so they can't be eaten.

For healthy cooking methods, first of all, don't wait until the oil smokes. This practice not only makes it easier for vegetables to release acrylamide, but also produces a lot of toxic substances, which are harmful to health. Secondly, it is suggested to stir fry, also called water stir fry, that is, put the oil first, and then put the vegetables in after the oil temperature is suitable. When the temperature rises and there is water oozing from the vegetables, immediately cover the lid to stuffy the vegetables. At this time, the steam will suddenly rise, and the steam at 100 degrees Celsius can completely cook the dishes. Just pay attention to the heat, it is best to use medium heat, because the fire is too small for steam to come up.