Kimchi contains nitrite, and the most nitrite is due to the time of pickling. Generally speaking, kimchi is the most delicious if it is soaked for a long time. If it exceeds two months, some people will eat it in the second half of the year. Kimchi is usually eaten in September, October, March, April or even May of the next year. Some people even make too many pickles and leave them until the second half of the next year, and still eat them at this time. The medicinal effect of three yuan must be more, because after long-term weathering, the rock will turn into nitrite. Look at the salt water duck. If it is sprinkled on those stones, over time, the bricks will gradually disappear. This is I don’t know if you have seen it converted by nitrous acid. In the past, cattle in rural areas were burned. If people cut a small dung bucket next to it, it is excreted by the human body. Then over time, that The bricks next to it will disappear, because there are nitrites excreted by the human body, so the nitrites in the kimchi are the same. They have been weathered and oxidized and turned into nitrites. Not to mention My analogy is inappropriate, but it is true