Straight whiskey prior to its bottling. American straight whiskey must be aged in charred new oak barrels and must be put into the barrels for aging at a concentration not exceeding 62.5% abv. When bottled, only water to reduce proof may be added. This is the definition established for production of American whiskey for consumption within the United States as per the U.S federal "Standards of Identity for Distilled Spirits". (The regulations do not necessarily apply to American whiskey made for export.) Alternatively, straight can also refer to a way of requesting and/or serving a drink of whiskey—pouring the spirit without any
Rye whiskey be further designated as "straight", as in "straight rye whiskey". Rye whiskey was historically the prevalent whiskey in the northeastern states, especially Pennsylvania and Maryland. Pittsburgh was the center of rye whiskey production in the late 1700s and early 1800s. By 1808, Allegheny County farmers were selling one half barrel for each man, woman and child in the country. By the 1880s, Joseph F. Sinnott's distillery, Moore and Sinnott, located in Monongahela was the single largest producer of rye whiskey, with a capacity of 30,000 barrels a year. Rye whiskey largely disappeared after Prohibition. A few brands, such as Old