You would expect a building where vinegar is made to have a sour smell, highly pungent, perhaps with a whiff of apple. World Technology Ingredients (WTI) smells nothing like this. Their manufacturing facility, off a county two-lane in Jefferson, Georgia, has a vaguely mineral aroma. More dry than dank, and not altogether unpleasant.

Maybe that’s because the vinegar made here isn’t destined for grocery store shelves, but for food preservation. It’s called buffered vinegar, an all-natural additive that protects meats and other products from microbes. WTI makes a lot of this vinegar, more than it used to, in fact, and that’s partly because of Damon Nix.

On this Friday afternoon, Nix is taking a visitor through WTI’s plant, pointing out its sectors and stations. Here’s the wet vinegar, seven titanic tanks and even more smaller ones, emitting a hiss-and-motor chorus of mechanized blending. Over here’s the powdered version, mixed in towering contraptions on chalky floors (that will later be cleaned), then heated, blended, and bagged.

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