Will be poisoned, pickles not pickled can not be eaten, pickled food in the pickling process, often contaminated by microorganisms, if the amount of salt added to less than 15%, the nitrate in the vegetables can be microbial nitrite,

People who eat pickled products containing nitrites, will cause poisoning. The symptoms of the skin and mucous membranes are blue-purple, lips and fingernail beds are blue, and in severe cases, dizziness, headache, rapid heart rate and other symptoms, and even coma.

Expanded

Sauerkraut food taboos: avoid eating pickles that have not been pickled for a month, as well as other pickled foods; avoid pickled sauerkraut finished to the spring is still placed in the room temperature is not consumed; (you can leftover finished sauerkraut bagged, put in the refrigerator storage,

can extend its shelf life, about one month) pickling The process of avoiding fumes, flour and bacteria; avoid eating uncooked sauerkraut dishes; avoid arranging layers, each layer of edible salt surface sprinkled into the uneven, affecting the flavor of the finished pickled product.

People's Daily Online - How Pickled Foods Damage Our Bodies

Baidu Encyclopedia - Sauerkraut