Bourbon (whiskey)
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Bourbon () is a type of barrel-aged
American whiskey American whiskey is whiskey (a distilled beverage produced from a fermented mash of cereal grain) produced in the United States. American whiskeys made from mashes with at least 51% of their named grains include bourbon whiskey, rye whiskey, ...
made primarily from
corn Maize ( ; ''Zea mays'' subsp. ''mays'', from es, maíz after tnq, mahiz), also known as corn (North American and Australian English), is a cereal grain first domesticated by indigenous peoples in southern Mexico about 10,000 years ago. The ...
. The name derives from the
French French (french: français(e), link=no) may refer to: * Something of, from, or related to France ** French language, which originated in France, and its various dialects and accents ** French people, a nation and ethnic group identified with Franc ...
Bourbon dynasty The House of Bourbon (, also ; ) is a European dynasty of French origin, a branch of the Capetian dynasty, the royal House of France. Bourbon kings first ruled France and Navarre in the 16th century. By the 18th century, members of the Spanis ...
, although the precise source of inspiration is uncertain; contenders include Bourbon County in
Kentucky Kentucky ( , ), officially the Commonwealth of Kentucky, is a state in the Southeastern region of the United States and one of the states of the Upper South. It borders Illinois, Indiana, and Ohio to the north; West Virginia and Virginia ...
and
Bourbon Street Bourbon Street (french: Rue Bourbon, es, Calle de Borbón) is a historic street in the heart of the French Quarter of New Orleans. Extending thirteen blocks from Canal Street to Esplanade Avenue, Bourbon Street is famous for its many bars an ...
in
New Orleans New Orleans ( , ,New Orleans
, both of which are named after the dynasty.Kiniry, Laura.
Where Bourbon Really Got Its Name and More Tips on America's Native Spirit
. ''Smithsonian.com''. June 13, 2013. The name bourbon was not applied until the 1850s, and the Kentucky etymology was not advanced until the 1870s. Bourbon has been
distilled Distillation, or classical distillation, is the process of separating the components or substances from a liquid mixture by using selective boiling and condensation, usually inside an apparatus known as a still. Dry distillation is the hea ...
since the 18th century. Although bourbon may be made anywhere in the United States, it is strongly associated with the
American South The Southern United States (sometimes Dixie, also referred to as the Southern States, the American South, the Southland, or simply the South) is a geographic and cultural region of the United States of America. It is between the Atlantic Ocean ...
in general, and with Kentucky in particular. As of 2014, distillers' wholesale market revenue for bourbon sold within the U.S. was about $2.7 billion, and bourbon made up about two thirds of the $1.6 billion of U.S. exports of distilled spirits. According to the Distilled Spirits Council of the United States, in 2018 U.S. distillers derived $3.6 billion in revenue from bourbon and Tennessee whiskey (a closely related spirit produced in the state of
Tennessee Tennessee ( , ), officially the State of Tennessee, is a landlocked U.S. state, state in the Southeastern United States, Southeastern region of the United States. Tennessee is the List of U.S. states and territories by area, 36th-largest by ...
). Bourbon was recognized in 1964 by the U.S. Congress as a "distinctive product of the United States". Bourbon sold in the U.S. must be produced in the country from at least 51% corn and stored in a new container of charred oak.


History

Distilling was most likely brought to present-day Kentucky in the late 18th century by Scots, Scots-Irish, and other settlers (including English, Irish, Welsh, German, and French) who began to farm the area in earnest. The origin of bourbon as a distinct form of whiskey is not well documented and there are many conflicting legends and claims. For example, the invention of bourbon is often attributed to Elijah Craig, a
Baptist Baptists form a major branch of Protestantism distinguished by baptizing professing Christian believers only ( believer's baptism), and doing so by complete immersion. Baptist churches also generally subscribe to the doctrines of soul c ...
minister and distiller credited with many Kentucky firsts (e.g., fulling mill,
paper mill A paper mill is a factory devoted to making paper from vegetable fibres such as wood pulp, old rags, and other ingredients. Prior to the invention and adoption of the Fourdrinier machine and other types of paper machine that use an endless belt ...
,
ropewalk A ropewalk is a long straight narrow lane, or a covered pathway, where long strands of material are laid before being twisted into rope. Due to the length of some ropewalks, workers may use bicycles to get from one end to the other. Many rope ...
) who is said to have been the first to age the product in charred oak casks, a process that gives bourbon its brownish color and distinctive taste. In Bourbon County, across the county line from Craig's distillery in what was then Fayette County, an early distiller named Jacob Spears is credited with being the first to label his product as Bourbon whiskey. Although still popular and often repeated, the Craig legend is
apocrypha Apocrypha are works, usually written, of unknown authorship or of doubtful origin. The word ''apocryphal'' (ἀπόκρυφος) was first applied to writings which were kept secret because they were the vehicles of esoteric knowledge considered ...
l. Similarly, the Spears story is a local favorite but is rarely repeated outside the county. There likely was no single "inventor" of bourbon, which developed into its present form in the late 19th century. Essentially, any type of grain can be used to make whiskey, and the practice of aging whiskey and charring the barrels for better flavor had been known in Europe for centuries. The late date of the Bourbon County etymology has led historian Michael Veach to dispute its authenticity. He proposes the whiskey was named after
Bourbon Street Bourbon Street (french: Rue Bourbon, es, Calle de Borbón) is a historic street in the heart of the French Quarter of New Orleans. Extending thirteen blocks from Canal Street to Esplanade Avenue, Bourbon Street is famous for its many bars an ...
in
New Orleans New Orleans ( , ,New Orleans
, a major port where shipments of Kentucky whiskey sold well as a cheaper alternative to French
cognac Cognac ( , also , ) is a variety of brandy named after the commune of Cognac, France. It is produced in the surrounding wine-growing region in the departments of Charente and Charente-Maritime. Cognac production falls under French appella ...
. Another proposed origin of the name is the association with the geographic area known as ''Old Bourbon'', consisting of the original Bourbon County in
Virginia Virginia, officially the Commonwealth of Virginia, is a state in the Mid-Atlantic and Southeastern regions of the United States, between the Atlantic Coast and the Appalachian Mountains. The geography and climate of the Commonwealth are ...
organized in 1785. This region included much of today's Eastern Kentucky, including 34 of the modern counties. It included the current Bourbon County in Kentucky, which became a county when Kentucky separated from Virginia as a new state in 1792.Cowdery, Charles K., ''Bourbon, Straight: The Uncut and Unfiltered Story of American Whiskey'', p. 25 According to Charles K. Cowdery, Although many distilleries operated in Bourbon County historically, no distilleries operated there between 1919, when
Prohibition Prohibition is the act or practice of forbidding something by law; more particularly the term refers to the banning of the manufacture, storage (whether in barrels or in bottles), transportation, sale, possession, and consumption of alcoholi ...
began in Kentucky, and late 2014, when a small distillery opened – a period of 95 years. Prohibition devastated the bourbon industry. With the ratification of the 18th amendment in 1919, all distilleries were forced to stop operating, although a few were granted permits to bottle existing stocks of medicinal whiskey. Later, a few were allowed to resume production when the stocks ran out. Distilleries that were granted permits to produce or bottle medicinal whiskey included Brown-Forman, Frankfort Distillery, James Thompson and Brothers, American Medical Spirits, the Schenley Distillery (modern-day
Buffalo Trace Distillery Buffalo Trace Distillery is a distillery in Frankfort, Kentucky, owned by the Sazerac Company. It has historically been known by several names, including the George T. Stagg Distillery and the Old Fashioned Copper (O.F.C.) Distillery. Its namesak ...
), and the A. Ph. Stitzel Distillery. A refinement often dubiously credited to James C. Crow is the sour mash process, which conditions each new
fermentation Fermentation is a metabolic process that produces chemical changes in organic substrates through the action of enzymes. In biochemistry, it is narrowly defined as the extraction of energy from carbohydrates in the absence of oxygen. In food p ...
with some amount of spent mash. Spent mash is also known as spent beer, distillers' spent grain, stillage, and slop or feed mash, so named because it is used as animal feed. The
acid In computer science, ACID ( atomicity, consistency, isolation, durability) is a set of properties of database transactions intended to guarantee data validity despite errors, power failures, and other mishaps. In the context of databases, a se ...
introduced when using the sour mash controls the growth of
bacteria Bacteria (; singular: bacterium) are ubiquitous, mostly free-living organisms often consisting of one biological cell. They constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria were am ...
that could taint the whiskey and creates a proper pH balance for the yeast to work. A
concurrent resolution A concurrent resolution is a resolution (a legislative measure) adopted by both houses of a bicameral legislature that lacks the force of law (is non-binding) and does not require the approval of the chief executive (president). Concurrent resolut ...
adopted by the
United States Congress The United States Congress is the legislature of the federal government of the United States. It is Bicameralism, bicameral, composed of a lower body, the United States House of Representatives, House of Representatives, and an upper body, ...
in 1964 declared bourbon to be a "distinctive product of the United States" and asked "the appropriate agencies of the United States Government ... otake appropriate action to prohibit importation into the United States of whiskey designated as 'Bourbon Whiskey'." Federal regulation now defines bourbon whiskey to only include bourbon produced in the U.S. In recent years, bourbon and Tennessee whiskey, which is sometimes regarded as a different type of spirit but generally meets the legal requirements to be called bourbon, have enjoyed significant growth in popularity. The industry trade group Distilled Spirits Council of the United States (DISCUS) tracks sales of bourbon and Tennessee whiskey together.Associated Press
"Bourbon, Tennessee Whiskey Sales Up in US; Exports Top $1B"
(February 3, 2015).
According to DISCUS, during 2009–2014, the volume of 9-liter cases of whiskey increased by 28.5% overall. Higher-end bourbon and whiskeys experienced the greatest growth. Gross supplier revenues (including federal excise tax) for U.S. bourbon and Tennessee whiskey increased by 46.7% over the 2009–2014 period, with the greatest growth coming from high-end products. In 2014, more than 19 million nine-liter cases of bourbon and Tennessee whiskey were sold in the U.S., generating almost $2.7 billion in wholesale distillery revenue. U.S. exports of bourbon whiskey surpassed $1 billion for the first time in 2013; distillers hailed the rise of a "golden age of Kentucky bourbon" and predicted further growth. In 2014, it was estimated that U.S. bourbon whiskey exports surpassed $1 billion, making up the majority of the U.S. total of $1.6 billion in spirits exports. Major export markets for U.S. spirits are, in descending order: Canada, the United Kingdom, Germany, Australia, and France. The largest percentage increases in U.S. exports were, in descending order: Brazil, the Dominican Republic, Bahamas, Israel, and United Arab Emirates. Key elements of growth in the markets showing the largest increases have been changes of law, trade agreements, and reductions of tariffs, as well as increased consumer demand for premium-category spirits.


Legal requirements

Bourbon's legal definition varies somewhat from country to country, but many trade agreements require that the name "bourbon" be reserved for products made in the U.S. The U.S. regulations for labeling and advertising bourbon apply only to products made for consumption within the U.S.; they do not apply to
distilled Distillation, or classical distillation, is the process of separating the components or substances from a liquid mixture by using selective boiling and condensation, usually inside an apparatus known as a still. Dry distillation is the hea ...
spirits made for export. Canadian law requires products labeled bourbon to be made in the U.S. and also to conform to the requirements that apply within the U.S. The European Union also requires bourbon to be made in the U.S. following the law of the country. But in other countries, products labeled bourbon may not adhere to the same standards. The Federal Standards of Identity for Distilled Spirits, codified under 27 CFR §5.22(b)(1)(i), states bourbon made for U.S. consumption must be: * Produced in the U.S. and its Territories (Puerto Rico), as well as the District of Columbia * Made from a grain mixture that is at least 51%
corn Maize ( ; ''Zea mays'' subsp. ''mays'', from es, maíz after tnq, mahiz), also known as corn (North American and Australian English), is a cereal grain first domesticated by indigenous peoples in southern Mexico about 10,000 years ago. The ...
* Aged in new, charred oak containers * Distilled to no more than 160 (U.S.)
proof Proof most often refers to: * Proof (truth), argument or sufficient evidence for the truth of a proposition * Alcohol proof, a measure of an alcoholic drink's strength Proof may also refer to: Mathematics and formal logic * Formal proof, a c ...
(80%
alcohol by volume Alcohol by volume (abbreviated as ABV, abv, or alc/vol) is a standard measure of how much alcohol ( ethanol) is contained in a given volume of an alcoholic beverage (expressed as a volume percent). It is defined as the number of millilitres (mL) ...
) * Entered into the container for aging at no more than 125 proof (62.5%
alcohol by volume Alcohol by volume (abbreviated as ABV, abv, or alc/vol) is a standard measure of how much alcohol ( ethanol) is contained in a given volume of an alcoholic beverage (expressed as a volume percent). It is defined as the number of millilitres (mL) ...
) * Bottled (like other whiskeys) at 80 proof or more (40%
alcohol by volume Alcohol by volume (abbreviated as ABV, abv, or alc/vol) is a standard measure of how much alcohol ( ethanol) is contained in a given volume of an alcoholic beverage (expressed as a volume percent). It is defined as the number of millilitres (mL) ...
) Bourbon has no minimum specified duration for its aging period.Favorite whiskey myths debunked
, ''The Chuck Cowdery Blog'', December 16, 2009. (Accessed January 2011.)
Products aged for as little as three months are sold as bourbon. The exception is
straight Straight may refer to: Slang * Straight, slang for heterosexual ** Straight-acting, an LGBT person who does not exhibit the appearance or mannerisms of the gay stereotype * Straight, a member of the straight edge subculture Sport and games * ...
bourbon, which has a minimum aging requirement of two years. In addition, any bourbon aged less than four years must include an age statement on its label. Bourbon that meets the above requirements, has been aged for a minimum of two years, and does not have added coloring, flavoring, or other spirits may be – but is not required to be – called
straight Straight may refer to: Slang * Straight, slang for heterosexual ** Straight-acting, an LGBT person who does not exhibit the appearance or mannerisms of the gay stereotype * Straight, a member of the straight edge subculture Sport and games * ...
bourbon. * Bourbon that is labeled as ''straight'' that has been aged under four years must be labeled with the duration of its aging. * Bourbon that has an age stated on its label must be labeled with the age of the youngest whiskey in the bottle (not counting the age of any added
neutral grain spirits Rectified spirit, also known as neutral spirits, rectified alcohol or ethyl alcohol of agricultural origin, is highly concentrated ethanol that has been purified by means of repeated distillation in a process called rectification. In some countr ...
in a bourbon that is labeled as blended, as neutral-grain spirits are not considered whiskey under the regulations and are not required to be aged at all).
Bottled-in-bond Bottled in bond is a label for an American-made distilled beverage that has been aged and bottled according to a set of legal regulations contained in the United States government's Standards of Identity for Distilled Spirits, as originally laid ...
bourbon is a sub-category of straight bourbon and must be aged at least four years. Bourbon that is labeled ''blended'' (or as a ''blend'') may contain added coloring, flavoring, and other spirits, such as un-aged neutral grain spirits, but at least 51% of the product must be straight bourbon. "High rye bourbon" is not a legally defined term but usually means a bourbon with 20–35% rye. High-wheat bourbons are described as more mild and subdued compared to high-rye varieties. Bourbon that has been aged for fewer than three years cannot legally be referred to as whiskey (or whisky) in the EU.


Geographic origin

On May 4, 1964, the U.S. Congress recognized bourbon whiskey as a "distinctive product of the United States" by concurrent resolution. Bourbon may be produced anywhere in the U.S. where it is legal to distill spirits, but most
brands A brand is a name, term, design, symbol or any other feature that distinguishes one seller's good or service from those of other sellers. Brands are used in business, marketing, and advertising for recognition and, importantly, to create an ...
are produced in Kentucky, where bourbon production has a strong historical association. The filtering of iron-free water through the high concentrations of limestone that are unique to the area is often touted by bourbon distillers in Kentucky as a signature step in the bourbon-making process. On August 2, 2007, the U.S. Senate passed a resolution sponsored by Senator Jim Bunning (R-KY) officially declaring September 2007 to be National Bourbon Heritage Month, commemorating the history of bourbon whiskey.S. Res. No. 110-294 (2007). Notably, the resolution claimed that Congress had declared bourbon to be "America's Native Spirit" in its 1964 resolution. However, the 1964 resolution did not contain such a statement; it declared bourbon to be a distinctive product identifiable with the U.S. (in a similar way that Scotch is considered identifiable with Scotland).Is Bourbon Officially America's Native Spirit?
, ''The Chuck Cowdery Blog'', April 27, 2009.
The resolution was passed again in 2008. As of 2018, approximately 95% of all bourbon is produced in Kentucky, according to the Kentucky Distillers' Association. As of 2018, there were 68 whiskey distilleries in Kentucky, this was up 250 percent in the past ten years. At that time, the state had more than 8.1 million barrels of bourbon that were aging – a number that greatly exceeds the state's population of about 4.3 million.
Bardstown, Kentucky Bardstown is a home rule-class city in Nelson County, Kentucky, United States. The population was 11,700 in the 2010 census. It is the county seat of Nelson County. Bardstown is named for the pioneering Bard brothers. David Bard obtained a l ...
, is home to the annual Bourbon Festival held each September. It has been called the "Bourbon Capital of the World" by the Bardstown Tourism Commission and the Kentucky Bourbon Festival organizers who have registered the phrase as a
trademark A trademark (also written trade mark or trade-mark) is a type of intellectual property consisting of a recognizable sign, design, or expression that identifies products or services from a particular source and distinguishes them from ot ...
. The
Kentucky Bourbon Trail The Kentucky Bourbon Trail (sometimes informally shortened to "the Bourbon Trail") is the name of a program sponsored by the Kentucky Distillers' Association (KDA) to promote the Bourbon whiskey industry in Kentucky. The KDA has registered th ...
is the name of a tourism promotion program organized by the Kentucky Distillers' Association that is aimed at attracting visitors to the distilleries in Kentucky, particularly Four Roses ( Lawrenceburg),
Heaven Hill Heaven Hill Distilleries, Inc. is a private, American family-owned and operated distillery founded in 1935 and headquartered in Bardstown, Kentucky, that produces and markets the Heaven Hill brand of Kentucky Straight Bourbon Whiskey and a varie ...
(
Bardstown Bardstown is a home rule-class city in Nelson County, Kentucky, United States. The population was 11,700 in the 2010 census. It is the county seat of Nelson County. Bardstown is named for the pioneering Bard brothers. David Bard obtained a l ...
),
Jim Beam Jim Beam is an American brand of bourbon whiskey produced in Clermont, Kentucky, by Beam Suntory. It is one of the best-selling brands of bourbon in the world. Since 1795 (interrupted by Prohibition in the United States, Prohibition), seven gene ...
( Clermont), Maker's Mark ( Loretto), Town Branch (
Lexington Lexington may refer to: Places England * Laxton, Nottinghamshire, formerly Lexington Canada * Lexington, a district in Waterloo, Ontario United States * Lexington, Kentucky, the largest city with this name * Lexington, Massachusetts, the oldes ...
),
Wild Turkey The wild turkey (''Meleagris gallopavo'') is an upland ground bird native to North America, one of two extant species of turkey and the heaviest member of the order Galliformes. It is the ancestor to the domestic turkey, which was originally d ...
( Lawrenceburg), and
Woodford Reserve Woodford Reserve is a brand of premium small batch Kentucky straight bourbon whiskey produced in Woodford County, Kentucky, by the Brown-Forman Corporation. It is made from a mixture of copper pot still spirits produced at the company's Woodford ...
(
Versailles The Palace of Versailles ( ; french: Château de Versailles ) is a former royal residence built by King Louis XIV located in Versailles, about west of Paris, France. The palace is owned by the French Republic and since 1995 has been managed, ...
).
Tennessee Tennessee ( , ), officially the State of Tennessee, is a landlocked U.S. state, state in the Southeastern United States, Southeastern region of the United States. Tennessee is the List of U.S. states and territories by area, 36th-largest by ...
is home to other major bourbon makers, although most prefer to call their product " Tennessee whiskey" instead, including giant Jack Daniel's. It is legally defined under Tennessee House Bill 1084, the
North American Free Trade Agreement The North American Free Trade Agreement (NAFTA ; es, Tratado de Libre Comercio de América del Norte, TLCAN; french: Accord de libre-échange nord-américain, ALÉNA) was an agreement signed by Canada, Mexico, and the United States that crea ...
and at least one other international trade agreement as the recognized name for a straight bourbon whiskey produced in Tennessee.SICE - Free Trade Agreement between the Government of the United States of America and the Government of the Republic of Chile
, Section E, Article 3.15 "Distinctive products".
It is also required to meet the legal definition of bourbon under Canadian law. Although some Tennessee whiskey makers maintain that a pre-aging filtration through chunks of maple charcoal, known as the
Lincoln County Process The Lincoln County Process is a step used in producing almost all Tennessee whiskeys. The whiskey is filtered through — or steeped in
and legally mandated since 2013, make its flavor distinct from bourbon, U.S. regulations defining bourbon neither require nor prohibit its use.Charles K. Cowdery
Tennessee Whiskey Versus Bourbon Whiskey
, ''The Chuck Cowdery Blog'', February 21, 2009. (Accessed January 2011.)
Bourbon also was and is made in other U.S. states. The largest bourbon distiller outside of Kentucky and Tennessee is
MGP of Indiana MGP of Indiana (Midwest Grain Products of Indiana), formerly known as LDI (Lawrenceburg Distillers Indiana), is a distillery in Lawrenceburg, Indiana, producing spirits for private label sale. These are sold under about 50 different brand names ...
, which primarily wholesales its spirits products to bottling companies that sell them under about 50 different brand names – in some cases, misleadingly marketed as "craft" whiskey, despite being produced at a large wholesaler's factory.


Production process

To be legally sold as bourbon, the whiskey's
mash bill Mash ingredients, mash bill, mashbill, or grain bill are the materials that brewers use to produce the wort that they then ferment into alcohol. Mashing is the act of creating and extracting fermentable and non-fermentable sugars and flavor co ...
requires a minimum of 51% corn, with the remainder being any cereal grain. A proposed change to U.S. regulations will expand allowable "grains" to include seeds of the pseudocereals amaranth, buckwheat, and quinoa. A mash bill that contains wheat instead of rye produces what is known as a wheated bourbon. The grain is ground and mixed with water. Usually mash from a previous distillation is added to ensure consistency across batches, creating a sour mash. Finally, yeast is added, and the mash is
fermented Fermentation is a metabolic process that produces chemical changes in organic substrates through the action of enzymes. In biochemistry, it is narrowly defined as the extraction of energy from carbohydrates in the absence of oxygen. In food p ...
. It is distilled to (typically) between 65% and 80% alcohol using either a traditional
alembic An alembic (from ar, الإنبيق, al-inbīq, originating from grc, ἄμβιξ, ambix, 'cup, beaker') is an alchemical still consisting of two vessels connected by a tube, used for distillation of liquids. Description The complete dis ...
(or
pot still A pot still is a type of distillation apparatus or still used to distill liquors such as whisky or brandy. In modern (post-1850s) practice, they are not used to produce rectified spirit, because they do not separate congeners from ethanol a ...
) or the much less expensive
continuous still A column still, also called a continuous still, patent still or Coffey still is a variety of still consisting of two columns. Column stills can produce rectified spirit (95% ABV). Description The first column (called the analyzer) in a colum ...
. Most modern bourbons are initially run off using a column still and then redistilled in a "doubler" (alternatively known as a "thumper" or "retort") that is basically a pot still. The resulting clear spirit, called "white dog", is placed in charred new oak containers for aging. In practice, these containers are generally barrels made from American
white oak The genus ''Quercus'' contains about 500 species, some of which are listed here. The genus, as is the case with many large genera, is divided into subgenera and sections. Traditionally, the genus ''Quercus'' was divided into the two subgenera ''C ...
. The spirit gains its color and much of its flavor from the caramelized
sugar Sugar is the generic name for sweet-tasting, soluble carbohydrates, many of which are used in food. Simple sugars, also called monosaccharides, include glucose, fructose, and galactose. Compound sugars, also called disaccharides or do ...
s and
vanillin Vanillin is an organic compound with the molecular formula . It is a phenolic aldehyde. Its functional groups include aldehyde, hydroxyl, and ether. It is the primary component of the extract of the vanilla bean. Synthetic vanillin is now u ...
s in the charred wood. Straight bourbon must be aged at least two years, and blended bourbon must contain at least 51% straight bourbon on a proof gallon basis (i.e., most of the alcohol in the blend must be from straight bourbon). The remainder of the spirits in a blended bourbon may be neutral grain spirits that are not aged at all. If a product is labeled merely as bourbon whiskey rather than straight or blended, no specific minimum aging period is prescribed – only that the product has been "stored at not more than 62.5% alcohol by volume (125 proof) in charred new oak containers". Bourbons gain more color and flavor the longer they age in wood. Changes to the spirit also occur due to
evaporation Evaporation is a type of vaporization that occurs on the surface of a liquid as it changes into the gas phase. High concentration of the evaporating substance in the surrounding gas significantly slows down evaporation, such as when h ...
and chemical processes such as
oxidation Redox (reduction–oxidation, , ) is a type of chemical reaction in which the oxidation states of substrate change. Oxidation is the loss of electrons or an increase in the oxidation state, while reduction is the gain of electrons or ...
. Lower-priced bourbons tend to be aged relatively briefly. Even for higher-priced bourbons, "maturity" rather than a particular age duration is often the goal, as over-aging bourbons can negatively affect the flavor of the bourbon (making it taste woody, bitter, or unbalanced). After maturing, bourbon is withdrawn from the barrel and is typically
filtered Filtration is a physical separation process that separates solid matter and fluid from a mixture using a ''filter medium'' that has a complex structure through which only the fluid can pass. Solid particles that cannot pass through the filter m ...
and diluted with water. It is then bottled at no less than 80 US proof (40% abv). Although most bourbon whiskey is sold at 80 US proof, other common proofs are 86, 90, and 100. All "
bottled in bond Bottled in bond is a label for an American-made distilled beverage that has been aged and bottled according to a set of legal regulations contained in the United States government's Standards of Identity for Distilled Spirits, as originally laid ...
" bourbon is 100 proof. Some higher-proof bottlings are marketed as "
barrel proof Cask strength (also known as barrel proof/barrel strength) is a term used by whiskey (often spelled "whisky" outside of Ireland and the United States) and rum producers to describe a whiskey or rum that has not been substantially diluted after its ...
", meaning they have not been diluted or have been only lightly diluted after removal from the barrels. Bourbon whiskey may be sold at less than 80 proof but must be labeled as "diluted bourbon". After processing, barrels remain saturated with up to of bourbon, although is the norm. They may not be reused for bourbon, and most are sold to distilleries in Canada, Scotland, Ireland, Mexico, and the Caribbean for aging other spirits. Some are employed in the manufacture of various barrel-aged products, including amateur and professionally brewed bourbon
barrel-aged beer A barrel-aged beer is a beer that has been aged for a period of time in a wooden barrel. Typically, these barrels once housed bourbon, whisky, wine, or, to a lesser extent, brandy, sherry, or port. Labeling requirements for bourbon and other alcoholic beverages (including the requirements for what is allowed to be called bourbon under U.S. law) are defined in the U.S.
Code of Federal Regulations In the law of the United States, the ''Code of Federal Regulations'' (''CFR'') is the codification of the general and permanent regulations promulgated by the executive departments and agencies of the federal government of the United States. ...
. No whiskey made outside the U.S. may be labeled bourbon or sold as bourbon inside the U.S. Various other countries have trade agreements with the U.S. to recognize bourbon as a distinctive product of the U.S., including Canada and Mexico, the United Kingdom, Chile, and Brazil. A 2016 experiment by Louisville craft distiller Jefferson's Bourbon suggests that in the era before whiskey was routinely bottled at the distillery, Kentucky bourbon developed a superior taste because it was shipped in barrels, using water transport wherever practical. To test this theory, Jefferson's cofounder Trey Zoeller sent two barrels of the company's signature product to New York City via barge, first down the Ohio and Mississippi Rivers and then along the
Intracoastal Waterway The Intracoastal Waterway (ICW) is a inland waterway along the Atlantic and Gulf of Mexico coasts of the United States, running from Massachusetts southward along the Atlantic Seaboard and around the southern tip of Florida, then following t ...
. As a control, he brought a batch of the same whiskey that had remained in Louisville during the same period. According to ''
Popular Mechanics ''Popular Mechanics'' (sometimes PM or PopMech) is a magazine of popular science and technology, featuring automotive, home, outdoor, electronics, science, do-it-yourself, and technology topics. Military topics, aviation and transportation o ...
'' writer Jacqueline Detwiler, who documented the test, the sample that made the waterborne journey "was mature beyond its age, richer, with new flavors of tobacco, vanilla, caramel, and honey. It was some of the best bourbon any of us had ever drunk." It was theorized that the action of gentle sloshing of the whiskey in barrels for a period of 2 to 4 weeks during the barge trip led to a dramatic improvement in smoothness and taste. Chemical analysis of the two samples revealed significant differences in molecular profiles, with the sample transported by water having a greater diversity of aromatic compounds.


Uses

Bourbon is served in a variety of manners, including
neat Neat may refer to: * Neat (bartending), a single, unmixed liquor served in a rocks glass * Neat, an old term for horned oxen * Neat Records, a British record label * Neuroevolution of augmenting topologies (NEAT), a genetic algorithm (GA) for th ...
; diluted with water; over ice ("on the rocks"); with
cola Cola is a carbonated soft drink flavored with vanilla, cinnamon, citrus oils and other flavorings. Cola became popular worldwide after the American pharmacist John Stith Pemberton invented Coca-Cola, a trademarked brand, in 1886, which was imi ...
or other beverages in simple mixed drinks; and in cocktails – including the
Manhattan Manhattan (), known regionally as the City, is the most densely populated and geographically smallest of the five boroughs of New York City. The borough is also coextensive with New York County, one of the original counties of the U.S. state ...
, Bourbon Smash, the Old Fashioned, the whiskey sour, and the
mint julep Mint julep is a mixed alcoholic drink, or cocktail, consisting primarily of bourbon, sugar, water, crushed or shaved ice, and fresh mint. As a bourbon-based cocktail, it is associated with the American South and the cuisine of the Southern Uni ...
. Bourbon is also used in
cooking Cooking, cookery, or culinary arts is the art, science and craft of using heat to prepare food for consumption. Cooking techniques and ingredients vary widely, from grilling food over an open fire to using electric stoves, to baking in vario ...
, and it was historically used for medicinal purposes. Bourbon can be used in a variety of
confections Confectionery is the art of making confections, which are food items that are rich in sugar and carbohydrates. Exact definitions are difficult. In general, however, confectionery is divided into two broad and somewhat overlapping categorie ...
such as a
banana A banana is an elongated, edible fruit – botanically a berry – produced by several kinds of large herbaceous flowering plants in the genus ''Musa''. In some countries, bananas used for cooking may be called "plantains", disting ...
bourbon syrup for
waffles A waffle is a dish made from leavened batter or dough that is cooked between two plates that are patterned to give a characteristic size, shape, and surface impression. There are many variations based on the type of waffle iron and recipe used ...
, a flavoring for chocolate cake, and fruit-based desserts like grilled peach sundaes served with salted bourbon-
caramel Caramel ( or ) is an orange-brown confectionery product made by heating a range of sugars. It can be used as a flavoring in puddings and desserts, as a filling in bonbons, or as a topping for ice cream and custard. The process of carameli ...
or brown sugar
shortcake Shortcake generally refers to a dessert with a crumbly scone like texture. There is multiple variations of shortcake most of which are usually served with fruit and cream, one of the most popular being strawberry shortcake which is typically s ...
with warmed bourbon
peach The peach (''Prunus persica'') is a deciduous tree first domesticated and cultivated in Zhejiang province of Eastern China. It bears edible juicy fruits with various characteristics, most called peaches and others (the glossy-skinned, n ...
es. It is an optional ingredient in several
pie A pie is a baked dish which is usually made of a pastry dough casing that contains a filling of various sweet or savoury ingredients. Sweet pies may be filled with fruit (as in an apple pie), nuts (pecan pie), brown sugar ( sugar pie), sweete ...
recipes traditional to
American cuisine American cuisine consists of the cooking style and traditional dishes prepared in the United States. It has been significantly influenced by Europeans, indigenous Native Americans, Africans, Asians, Pacific Islanders, and many other cultures a ...
, including
pumpkin pie Pumpkin pie is a dessert pie with a spiced, pumpkin-based custard filling. The pumpkin and pumpkin pie are both a symbol of harvest time, and pumpkin pie is generally eaten during the fall and early winter. In the United States and Canada it is u ...
, where it can be combined with brown sugar and pecans to make a sweet and crunchy topping for the creamy pumpkin pie filling. It can also be used as a flavoring in
sauces In cooking, a sauce is a liquid, cream, or semi- solid food, served on or used in preparing other foods. Most sauces are not normally consumed by themselves; they add flavor, moisture, and visual appeal to a dish. ''Sauce'' is a French wor ...
for savory dishes like grit cakes with country ham served with bourbon
mayonnaise Mayonnaise (; ), colloquially referred to as "mayo" , is a thick, cold, and creamy sauce or dressing commonly used on sandwiches, hamburgers, composed salads, and French fries. It also forms the base for various other sauces, such as tarta ...
, Kentucky bourbon chili, and grilled flank steak.


See also

*
American Whiskey Trail The American Whiskey Trail is the name of a promotional program supported by the Distilled Spirits Council of the United States that promotes the distilled beverage industry in the U.S. The Trail was first promoted to the public on September 28, 200 ...
* Bourbon Trail * List of cocktails with bourbon * List of maize dishes *
Moonshine Moonshine is high-proof liquor that is usually produced illegally. The name was derived from a tradition of creating the alcohol during the nighttime, thereby avoiding detection. In the first decades of the 21st century, commercial dist ...
* Rye whiskey *
Single barrel whiskey Single barrel whiskey (or single cask whiskey) is a premium class of whiskey in which each bottle comes from an individual aging barrel, instead of coming from blending together the contents of various barrels to provide uniformity of color and ta ...
*
Small batch Small batch whiskey is whiskey produced by mixing the contents of a relatively small number of selected barrels. Small batch whiskeys are commercially positioned for the upper-premium market. The term is most commonly used for American whiskey bu ...


References


Notes


Citations


Further reading

* Carson, Gerald. ''The Social History of Bourbon: An Unhurried Account of Our Star-Spangled Drink'' (Lexington, KY:
University Press of Kentucky The University Press of Kentucky (UPK) is the scholarly publisher for the Commonwealth of Kentucky, and was organized in 1969 as successor to the University of Kentucky Press. The university had sponsored scholarly publication since 1943. In 1 ...
), 1963. . * Cowdery, Charles K. ''Bourbon, Straight: The Uncut and Unfiltered Story of American Whiskey'' (Chicago: Made and Bottled in Kentucky), 2004. . * Crowgey, Henry G. ''Kentucky Bourbon: The Early Years of Whiskeymaking'' (Lexington, KY:
University Press of Kentucky The University Press of Kentucky (UPK) is the scholarly publisher for the Commonwealth of Kentucky, and was organized in 1969 as successor to the University of Kentucky Press. The university had sponsored scholarly publication since 1943. In 1 ...
), 1971. . * . * Regan, Gary and Mardee Haidin Regan. ''The Bourbon Companion: A Connoisseur's Guide'' (Philadelphia, PA:
Running Press Running Press is an American publishing company and member of the Perseus Books Group. The publisher's offices are located in Philadelphia, Pennsylvania, with many of the corporate functions taking place in Perseus' New York City headquarters. It ...
), 1998. . {{DEFAULTSORT:Bourbon Whiskey Economy of Kentucky Economy of Louisville, Kentucky Kentucky cuisine Whisky