Rhubarb wine vinegar made from…Rhubarb! White Winter Winery in Iron River WI, makes our wines to our specifications, then we inoculate the wine with live acetobacteria culture that converts the wine to vinegar. Done in small batches to maximize the flavors of each season. The herb infused varieties add lovely layers to the crisp Rhubarb flavor. The honey sweetened version is reminiscent of the days of youth when you picked a Rhubarb stalk, dipped it in sugar and chewed on it…sweet tartness!