1, selecting fresh vegetables for pickling;
Second, choose pickled radishes, carrots and other root vegetables;
Third, add some acidic substances such as lemon juice when curing, and the citric acid in lemon juice can inhibit the production of nitrite;
Fourth, you can also add some vitamin C in the pickling process, smash the vitamin C tablets, put them in water to make vitamin C solution, and put them in a vessel;
Fifth, the utensils used for pickling vegetables must be clean and hygienic. In case of artificial inoculation of fermented strains, the apparatus should be cleaned and sterilized at high temperature in advance; When pickling vegetables at home, iron or cook the utensils;
Sixth, when making fermented kimchi, keep it sealed and don't open it casually;
Seventh, when making pickles, controlling the taste to be slightly sweet or salty can reduce the nitrite content.