Known as "The Ancestor" after founder John Dewar, this impeccable blend is the result of a time-honored process. After Dewar blends the whiskies, they marry the blend in vintage oak casks and let it harmonize to perfection. It's what the Dewar family did then. It's what they do now. Aged in hand selected reserve casks for 12 years this whisky is handcrafted from up to 40 of Scotland's finest single malt and grain whiskies.