How to Control Bacteria in Fermentation

When i made sour crop, when iwas in that part of my journey a, i was looking for a, i think plantaris, certain kind of a bacteria that is supposed to help you with dis so ias like that. Researched it, found the species. It's really, really a prevalent in sar cro. And so then you have to get the salt concentration correct. You have to get it absolutely sterile, clean, so no contaminates, no fungus,. Because you want bacteria, you don't want the fungus. So the level of clean you have to be is, it's pretty hard. Cort. That's where magic wands come from. Magic wands