French Oak barrels are the gold standard for winemakers. They generally come from government-regulated forests in Aller, Limousin, Nevers, Troncais & Vosages. The trees used to make French barrels are at least twice as old when harvested as American Oaks. American Oaks used for wine barrels mainly come from Missouri, Minnesota & Wisconsin. There are other wine barrels crafted from trees grown in Eastern Europe.