Just read an industrial sauerkraut document..
It seems to say that, the difference between industrial sauerkraut and Home-Made,
Is that the Industrial version is seeded with Specific bacteria isolate from the very beginning of the process, Ensuring that, THAT bacteria, the one responsible for lactic acid pickling process OUT-COMPETES the myriad of other Unrelated bacterias (which are omnipresent and some harmful)..
So, it seems the AT HOME version, which relys on the natural sauerkraut bacteria which is Already present on the leaves, is Less reliable, and the end product contains more "undesirable" Toxic bacteria.
Hrrrrrmmm..... I don't see any of this seed bacteria for sale anywhere..