Rye Whiskey or Rye Whiskey is a whiskey that is distilled from a mash containing rye. This is mainly made in North America. In the United States of America, a rye whiskey content of 51% in the underlying grain mixture is required by law in order to designate a whiskey as rye whiskey. For historical reasons, every Canadian whiskey can be called rye whiskey - regardless of whether rye played a role in its production at all.