The blended red wines of Bordeaux have gone down in history as the finest wines every produced, with collectors and many of the general public still eagerly anticipating the wineries of this region's new releases to this day. The secret to Bordeaux's monumental success has been their careful blending of high quality grape varietals, controlled and protected by French law. In Bordeaux, wineries can only produce red wines using a blend of two or more of Cabernet Sauvignon, Merlot, Petit Verdot, Cabernet Franc, Malbec or Carménere grape varietals, with the latter two becoming less and less commonly seen on bottles. The vast majority of Bordeaux red wines use Cabernet Sauvignon and Merlot grape varietals, boosted by a little Petit Verdot. These three grapes compliment each other beautifully as they age in oak, rounded out their tannins and the high astringency of the Sauvignon, and resulting in wonderfully complex flavors and aromas.