Which has more nitrite, salt-free sauerkraut or hydrochloric acid vegetables?

There are as many pickles without salt as those with hydrochloric acid. Nitrite is a recognized carcinogen, but some foods will be produced if they are left for a long time. Saltless pickled cabbage and vegetables with hydrochloric acid will produce nitrite, but who is more or less should be judged according to the length of time, not according to whether salt is put in, because salt is not equal to nitrite. If pickled cabbage without salt is left as long as vegetables with hydrochloric acid, then they also contain as much nitrite.