27 C.F.R. § 24.217 Vinegar stock.
Title 27 - Alcohol, Tobacco Products and Firearms
Vinegar stock may be produced on bonded wine premises with the addition of any quantity of water desired to meet commercial standards for the production of vinegar. Vinegar stock may be made only by the addition of water to wine or by the direct fermentation of the juice of grapes or other fruit with added water. (Sec. 201, Pub. L. 85–859, 72 Stat. 1380, as amended, 1381, as amended (26 U.S.C. 5361))
Title 27: Alcohol, Tobacco and Firearms
PART 24—WINE
Subpart J—Production of Other Than Standard Wine
§ 24.217 Vinegar stock.