Oak Wood Aged 25 Stars Barrel Aged 100% Made With Grapes From Italy - 4% Acidity By Stonewall Kitchen Our story began with a roadside produce stand run by our founder, the son of an organic farmer, in the heart of California's wine country. We've grown a lot since then, evolving into a line of premium oils and vinegars that are made using only the best olives, grapes, seeds or nuts from the finest orchards and fields around the world. The best of balsamics, our Grand Reserve Balsamic Vinegar features a 25-star rating and is produced from the same Italian grapes used in winemaking, including Lambrusco and Trebbiano varieties. We age this blend in oak or chestnut casks until it's thick and syrupy with a smooth, tart finish.