DEA originally based its decision to define the persons performing the reverse distribution function as disposers on the definition of manufacturer.. In 21 CFR 1300.01(b)(27), DEA defines manufacture in part as the producing, preparation, propagation, compounding, or processing of a drug or other substance . . . ..
Potassium sorbate is a chemical that is formed when potassium salt bonds with sorbic acid, creating a fatty acid salt that is polysaturated. At room temperature, it looks like a white crystalline powder, but the mixture will quickly dissolve in water, which will revert it back to sorbic acid as the potassium dissolves.
Too much sorbate will give your wine an off taste. Do not fret. Do some more wine and blend it with the over sorbated wine. Do another Chardonnay and maybe a Chenin Blanc and blend them. Just bulk age your wine for now. Blend later and bottle. Just don't add anymore sorbate. Typical amount is 1/2 teaspoon per gallon.