For the widest surface area and the greatest possibility of reusability, the type of oak you might want to use when aging and brewing beer or making wine at home is an oak beer barrel. MoreBeer! sells oak barrels, barrel racks and other accessories. The Vadai New Hungarian Oak Barrel is made of a type of oak found in Hungary that winemakers appreciate for the way they bring weight and minerality to the beverage. See what the mellow flavors of the toasted oak can do for the taste of your home brew! The Vadai Hungarian Oak Barrels are brand new, and are sold in many different sizes ranging from 5.3 gallons (20L) to 31.7 gallons (120L). These barrels also provide a natural way for micro-oxygenation of the beer to occur.