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
Whiskey thief for tasting. This same tool can be used for sampling other distilled spirits or wine from large vessels, hence it can also be used as a "wine thief". Newer models may be made of clear plastic or glass with the larger models having the capability of accepting a hydrometer for testing purposes. Whiskey thief A whiskey thief is a tool that master distillers use to extract small portions of whiskey from an aging barrel for sampling or quality control. The old-fashioned ones are made typically of copper and resemble a drinking straw in design. It has a coned narrow hole