Whiskey made from maize, rye, etc.; bourbon made primarily from maize; scotch made from barley malt; vodka made from wheat; rum is made from sugar cane; gin is made from barley malt and rye, and flavored with oil of juniper; brandy is distilled from wine or other fruit juices (it may be 65 to 70 percent alcohol or 130 to 140 proof; some German whiskies are made from potatoes.