Brewery

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Kettles in a modern Trappist brewery 8210 Brewery in Abbaye Notre-Dame de Saint-Remy Rochefort 2007 Luca Galuzzi.jpg
Kettles in a modern Trappist brewery

A brewery or brewing company is a business that makes and sells beer. The place at which beer is commercially made is either called a brewery or a beerhouse, where distinct sets of brewing equipment are called plant. [1] The commercial brewing of beer has taken place since at least 2500 BC; [2] in ancient Mesopotamia, brewers derived social sanction and divine protection from the goddess Ninkasi. [3] [4] Brewing was initially a cottage industry, with production taking place at home; by the ninth century, monasteries and farms would produce beer on a larger scale, selling the excess; and by the eleventh and twelfth centuries larger, dedicated breweries with eight to ten workers were being built. [5]

Contents

The diversity of size in breweries is matched by the diversity of processes, degrees of automation, and kinds of beer produced in breweries. A brewery is typically divided into distinct sections, with each section reserved for one part of the brewing process.

History

The Alulu beer receipt records a purchase of "best" beer from an ancient Sumerian brewery, c. 2050 BC Alulu Beer Receipt.jpg
The Alulu beer receipt records a purchase of "best" beer from an ancient Sumerian brewery, c. 2050 BC

Beer may have been known in Neolithic Europe [6] and was mainly brewed on a domestic scale. [7] In some form, it can be traced back almost 5000 years to Mesopotamian writings describing daily rations of beer and bread to workers. Before the rise of production breweries, the production of beer took place at home and was the domain of women, as baking and brewing were seen as "women's work".

Industrialization

19th century brewery installations Detenice.jpg
19th century brewery installations
The machine room of the former brewery Wielemans-Ceuppens in Brussels 20171209 BRASS machinezaal 01 013.jpg
The machine room of the former brewery Wielemans-Ceuppens in Brussels

Breweries, as production facilities reserved for making beer, did not emerge until monasteries and other Christian institutions started producing beer not only for their own consumption but also to use as payment. This industrialization of brewing shifted the responsibility of making beer to men.

The oldest, still functional, brewery in the world is believed to be the German state-owned Weihenstephan brewery in the city of Freising, Bavaria. It can trace its history back to 1040 AD. [8] The nearby Weltenburg Abbey brewery, can trace back its beer-brewing tradition to at least 1050 AD. [9] :30 The Žatec brewery in the Czech Republic claims it can prove that it paid a beer tax in 1004 AD.[ citation needed ]

Early breweries were almost always built on multiple stories, with equipment on higher floors used earlier in the production process, so that gravity could assist with the transfer of product from one stage to the next. This layout often is preserved in breweries today, but mechanical pumps allow more flexibility in brewery design. Early breweries typically used large copper vats in the brewhouse, and fermentation and packaging took place in lined wooden containers. Such breweries were common until the Industrial Revolution, when better materials became available, and scientific advances led to a better understanding of the brewing process. Today, almost all brewery equipment is made of stainless steel. During the Industrial Revolution, the production of beer moved from artisanal manufacture to industrial manufacture, and domestic manufacture ceased to be significant by the end of the 19th century. [10]

Major technological advances

A 16th-century brewery The Brewer designed and engraved in the Sixteenth. Century by J Amman.png
A 16th-century brewery

A handful of major breakthroughs have led to the modern brewery and its ability to produce the same beer consistently. The steam engine, vastly improved in 1775 by James Watt, brought automatic stirring mechanisms and pumps into the brewery. It gave brewers the ability to mix liquids more reliably while heating, particularly the mash, to prevent scorching, and a quick way to transfer liquid from one container to another. Almost all breweries now use electric-powered stirring mechanisms and pumps. The steam engine also allowed the brewer to make greater quantities of beer, as human power was no longer a limiting factor in moving and stirring.

Carl von Linde, along with others, is credited with developing the refrigeration machine in 1871. Refrigeration allowed beer to be produced year-round, and always at the same temperature. Yeast is very sensitive to temperature, and, if a beer were produced during summer, the yeast would impart unpleasant flavours onto the beer. Most brewers would produce enough beer during winter to last through the summer, and store it in underground cellars, or even caves, to protect it from summer's heat.

The discovery of microbes by Louis Pasteur was instrumental in the control of fermentation. The idea that yeast was a microorganism that worked on wort to produce beer led to the isolation of a single yeast cell by Emil Christian Hansen. Pure yeast cultures allow brewers to pick out yeasts for their fermentation characteristics, including flavor profiles and fermentation ability. Some breweries in Belgium, however, still rely on "spontaneous" fermentation for their beers (see lambic). The development of hydrometers and thermometers changed brewing by allowing the brewer more control of the process, and greater knowledge of the results.

The modern brewery

Brewery in Hurbanovo, Slovakia Vstup do pivovaru.jpg
Brewery in Hurbanovo, Slovakia
Sinebrychoff Brewery in Kerava, Finland; a view from the Helsinki-Lahti Highway Koff kerava.jpg
Sinebrychoff Brewery in Kerava, Finland; a view from the Helsinki-Lahti Highway

Breweries today are made predominantly of stainless steel, although vessels often have a decorative copper cladding for a nostalgic look. Stainless steel has many favourable characteristics that make it a well-suited material for brewing equipment. It imparts no flavour in beer, it reacts with very few chemicals, which means almost any cleaning solution can be used on it (concentrated chlorine [bleach] being a notable exception).

Heating in the brewhouse usually is achieved through pressurized steam, although direct-fire systems are not unusual in small breweries. Likewise, cooling in other areas of the brewery is typically done by cooling jackets on tanks, which allow the brewer to control precisely the temperature on each tank individually, although whole-room cooling is also common.

Today, modern brewing plants perform myriad analyses on their beers for quality control purposes. Shipments of ingredients are analyzed to correct for variations. Samples are pulled at almost every step and tested for [oxygen] content, unwanted microbial infections, and other beer-aging compounds. A representative sample of the finished product often is stored for months for comparison, when complaints are received.

Brewing process

Brewing is typically divided into 9 steps: milling, malting, mashing, lautering, boiling, fermenting, conditioning, filtering, and filling.

Mashing is the process of mixing milled, usually malted, grain with water, and heating it with rests at certain temperatures to allow enzymes in the malt to break down the starches in the grain into sugars, especially maltose. Lautering is the separation of the extracts won during mashing from the spent grain to create wort. It is achieved in either a lauter tun, a wide vessel with a false bottom, or a mash filter, a plate-and-frame filter designed for this kind of separation. Lautering has two stages: first wort run-off, during which the extract is separated in an undiluted state from the spent grains, and sparging, in which extract that remains with the grains is rinsed off with hot water.

Boiling the wort ensures its sterility, helping to prevent contamination with undesirable microbes. During the boil, hops are added, which contribute aroma and flavour compounds to the beer, especially their characteristic bitterness. Along with the heat of the boil, they cause proteins in the wort to coagulate and the pH of the wort to fall, and they inhibit the later growth of certain bacteria. Finally, the vapours produced during the boil volatilize off-flavours, including dimethyl sulfide precursors. The boil must be conducted so that it is even and intense. The boil lasts between 60 and 120 minutes, depending on its intensity, the hop addition schedule, and volume of wort the brewer expects to evaporate.

Fermenting
Royal Brewery in Manchester, UK, with steel fermentation vessels Royal Brewery - October 2009.JPG
Royal Brewery in Manchester, UK, with steel fermentation vessels

Fermentation begins as soon as yeast is added to the cooled wort. This is also the point at which the product is first called beer. It is during this stage that fermentable sugars won from the malt (maltose, maltotriose, glucose, fructose and sucrose) are metabolized into alcohol and carbon dioxide. Fermentation tanks come in many shapes and sizes, from enormous cylindroconical vessels that can look like storage silos, to 20- litre (5  US gal ) glass carboys used by homebrewers. Most breweries today use cylindroconical vessels (CCVs), which have a conical bottom and a cylindrical top. The cone's aperture is typically around 70°, an angle that will allow the yeast to flow smoothly out through the cone's apex at the end of fermentation, but is not so steep as to take up too much vertical space. CCVs can handle both fermenting and conditioning in the same tank. At the end of fermentation, the yeast and other solids have fallen to the cone's apex can be simply flushed out through a port at the apex. Open fermentation vessels are also used, often for show in brewpubs, and in Europe in wheat beer fermentation. These vessels have no tops, making it easy to harvest top-fermenting yeasts. The open tops of the vessels increase the risk of contamination, but proper cleaning procedures help to control the risk.

Fermentation tanks are typically made of stainless steel. Simple cylindrical tanks with beveled ends are arranged vertically, and conditioning tanks are usually laid out horizontally. A very few breweries still use wooden vats for fermentation but wood is difficult to keep clean and infection-free and must be repitched often, perhaps yearly. After high kräusen, the point at which fermentation is most active and copious foam is produced, a valve known in German as the spundapparat may be put on the tanks to allow the carbon dioxide produced by the yeast to naturally carbonate the beer. This bung device can regulate the pressure to produce different types of beer; greater pressure produces a more carbonated beer.

Conditioning

When the sugars in the fermenting beer have been almost completely digested, the fermentation process slows and the yeast cells begin to die and settle at the bottom of the tank. At this stage, especially if the beer is cooled to around freezing, most of the remaining live yeast cells will quickly become dormant and settle, along with the heavier protein chains, due simply to gravity and molecular dehydration. Conditioning can occur in fermentation tanks with cooling jackets. If the whole fermentation cellar is cooled, conditioning must be done in separate tanks in a separate cellar. Some beers are conditioned only lightly, or not at all. An active yeast culture from an ongoing batch may be added to the next boil after a slight chilling in order to produce fresh and highly palatable beer in mass quantity.

Filling line, Radegast Brewery in Nosovice, Czech Republic Browar Radegast w Noszowicach 2017.jpg
Filling line, Radegast Brewery in Nošovice, Czech Republic
Filtering

Filtering the beer stabilizes flavour and gives it a polished, shiny look. It is an optional process. Many craft brewers simply remove the coagulated and settled solids and forgo active filtration. In localities where a tax assessment is collected by government pursuant to local laws, any additional filtration may be done using an active filtering system, the filtered product finally passing into a calibrated vessel for measurement just after any cold conditioning and prior to final packaging where the beer is put into the containers for shipment or sale. The container may be a bottle, can, of keg, cask or bulk tank.

Filters come in many types. Many use pre-made filtration media such as sheets or candles. Kieselguhr, a fine powder of diatomaceous earth, can be introduced into the beer and circulated through screens to form a filtration bed. Filtration ratings are divided into rough, fine, and sterile. Rough filters remove yeasts and other solids, leaving some cloudiness, while finer filters can remove body and color. Sterile filters remove almost all microorganisms.

Brewing companies

Yuengling Brewery, a regional brewery in Pottsville, Pennsylvania Yuengling brewery.jpg
Yuengling Brewery, a regional brewery in Pottsville, Pennsylvania

Brewing companies range widely in the volume and variety of beer produced, ranging from small breweries to massive multinational conglomerates, like Molson Coors or Anheuser-Busch InBev, that produce hundreds of millions of barrels annually. There are organizations that assist the development of brewing, such as the Siebel Institute of Technology in the United States and the Institute of Brewing and Distilling in the UK. In 2012 the four largest brewing companies (Anheuser-Busch InBev, SABMiller, Heineken International, and Carlsberg Group) controlled 50% of the market [11] The biggest brewery in the world is the Belgian-Brazilian company Anheuser-Busch InBev.

In the United States, there were 69,359 people employed in breweries in 2017. This is up from 27,805 in 2001. [12]

Some commonly used descriptions of breweries are:

Contract brewing

Contract brewing –When one brewery hires another brewery to produce its beer. The contracting brewer generally handles all of the beer's marketing, sales, and distribution, while leaving the brewing and packaging to the producer-brewery (which confusingly may also be referred to as a contract brewer). Often the contract brewing is performed when a small brewery can not supply enough beer to meet demands and contracts with a larger brewery to help alleviate their supply issues. Some breweries do not own a brewing facility, these contract brewers have been criticized by traditional brewing companies for avoiding the costs associated with a physical brewery. [14]

Gypsy brewing

Gypsy, or nomad, brewing usually falls under the category of contract brewing. Gypsy breweries generally do not have their own equipment or premises. They operate on a temporary or itinerant basis out of the facilities of another brewery, generally making "one-off" special occasion beers. [15] The trend of gypsy brewing spread early in Scandinavia. [16] Their beers and collaborations later spread to America and Australia. [17] Gypsy brewers typically use facilities of larger makers with excess capacity. [17]

Prominent examples include Pretty Things, Stillwater Artisanal Ales, Gunbarrel Brewing Company, Mikkeller, and Evil Twin. [18] [19] For example, one of Mikkeller's founders, Mikkel Borg Bjergsø, has traveled around the world between 2006 and 2010, brewing more than 200 different beers at other breweries. [20]

Sponsorship

Breweries and football have had a symbiotic relationship since the very beginnings of the game. The English Football League was founded in 1888, and by the next decade several teams already had their own brewery sponsor. In return for their financial support, the breweries were given concessions to sell beer to spectators and advertise their products in stadiums. The most outwardly visible sign of sponsorship are the adverts printed on football team's kit. For example, Liverpool F.C. had the logo of the Denmark-based Carlsberg brewery group on the front of its shirts for nearly twenty years, from 1992 to 2010.

Nowadays major brewing corporations are involved in sponsorship on a number of different levels. The prevailing trend is for the leading brand not to be linked to individual teams; rather, they achieve visibility as sponsor of tournaments and leagues, so all fans can engage with them regardless of which team they support. Heineken sponsors the UEFA Champions League with its namesake lager; Carlsberg sponsors the English Premier League as well as the 2012 and 2016 UEFA European Championships. Meanwhile, the AB InBev Group supports the FA Cup and the FIFA World Cup. [21]

Head brewer/brewmaster

The head brewer (UK) or brewmaster (US) is in charge of the production of beer. The major breweries employ engineers with a chemistry/biotechnology background.

Brewmasters may have had a formal education in the subject from institutions such as the Siebel Institute of Technology, VLB Berlin, Heriot-Watt University, American Brewers Guild, [22] University of California at Davis, University of Wisconsin, [22] Olds College [23] or Niagara College. [24] They may hold membership in professional organisations such as the Brewers Association, Master Brewers Association, American Society of Brewing Chemists, the Institute of Brewing and Distilling, [25] and the Society of Independent Brewers. Depending on a brewery's size, a brewer may need anywhere from five to fifteen years of professional experience before becoming a brewmaster. [22]

See also

Related Research Articles

<span class="mw-page-title-main">Beer</span> Alcoholic drink made from fermented cereal grains

Beer is one of the oldest and most widely consumed alcoholic drinks in the world, and the third most popular drink overall after water and tea. It is produced by the brewing and fermentation of starches, mainly derived from cereal grains—most commonly from malted barley, though wheat, maize (corn), rice, and oats are also used. During the brewing process, fermentation of the starch sugars in the wort produces ethanol and carbonation in the resulting beer. Most modern beer is brewed with hops, which add bitterness and other flavours and act as a natural preservative and stabilizing agent. Other flavouring agents such as gruit, herbs, or fruits may be included or used instead of hops. In commercial brewing, the natural carbonation effect is often removed during processing and replaced with forced carbonation.

<span class="mw-page-title-main">Brewing</span> Process in beer production

Brewing is the production of beer by steeping a starch source in water and fermenting the resulting sweet liquid with yeast. It may be done in a brewery by a commercial brewer, at home by a homebrewer, or communally. Brewing has taken place since around the 6th millennium BC, and archaeological evidence suggests that emerging civilizations, including ancient Egypt and Mesopotamia, brewed beer. Since the nineteenth century the brewing industry has been part of most western economies.

<span class="mw-page-title-main">Homebrewing</span> Small scale brewing of beer, mead, ciders

Homebrewing is the brewing of beer on a small scale for personal, non-commercial purposes. Supplies, such as kits and fermentation tanks, can be purchased locally at specialty stores or online. Beer was brewed domestically for thousands of years before its commercial production, although its legality has varied according to local regulation. Homebrewing is closely related to the hobby of home distillation, the production of alcoholic spirits for personal consumption; however home distillation is generally more tightly regulated.

<span class="mw-page-title-main">Lambic</span>

Lambic is a type of beer brewed in the Pajottenland region of Belgium southwest of Brussels and in Brussels itself since the 13th century. Types of lambic beers include gueuze, kriek lambic and framboise. Lambic differs from most other beers in that it is fermented through exposure to wild yeasts and bacteria native to the Zenne valley, as opposed to exposure to carefully cultivated strains of brewer's yeast. This process gives the beer its distinctive flavour: dry, vinous, and cidery, often with a tart aftertaste.

<span class="mw-page-title-main">Sahti</span> Finnish beer

Sahti is a Finnish type of farmhouse ale made from malted and unmalted grains including barley and rye. Traditionally the beer is flavored with juniper in addition to, or instead of, hops; the mash is filtered through juniper twigs into a trough-shaped tun, called a kuurna in Finnish. Sahti is top-fermented and many have a banana flavor due to isoamyl acetate from the use of baking yeast, although ale yeast may also be used in fermenting.

<span class="mw-page-title-main">Mashing</span> Combining a mix of grains with water and heating the mixture

In brewing and distilling, mashing is the process of combining a mix of ground grains – typically malted barley with supplementary grains such as corn, sorghum, rye, or wheat – known as the "grain bill" with water and then heating the mixture. Mashing allows the enzymes in the malt to break down the starch in the grain into sugars, typically maltose to create a malty liquid called wort.

Steam beer is a highly effervescent beer made by fermenting lager yeasts at warmer ale yeast fermentation temperatures. It has two distinct but related meanings:

<span class="mw-page-title-main">Adjuncts</span> Unmalted grains that are used in brewing

In brewing, adjuncts are unmalted grains or grain products used in brewing beer which supplement the main mash ingredient. This is often done with the intention of cutting costs, but sometimes also to create an additional feature, such as better foam retention, flavours or nutritional value or additives. Both solid and liquid adjuncts are commonly used.

<span class="mw-page-title-main">Beer in Norway</span>

Beer in Norway has a long history, stretching back more than a millennium. Until some 200 years ago, most farms where it was possible to grow grain south of the Arctic Circle, brewed their own beer. From the early 20th century brewing was industrialized and home brewing was restricted. Significant consolidation in the brewing sector reduced the number of major breweries to just a handful. With the exception of the farmhouse ales, most beer styles brewed in Norway trace their ancestry to central Europe.

<span class="mw-page-title-main">Allagash Brewing Company</span> Brewery in Portland, Maine, United States of America

Allagash Brewing Company is a brewery in Portland, Maine. The brewery specializes in Belgian style beers.

<span class="mw-page-title-main">Beer style</span> Differentiation and categories for different types of beer

Beer styles differentiate and categorise beers by colour, flavour, strength, ingredients, production method, recipe, history, or origin.

<span class="mw-page-title-main">Sour mash</span> Fermenting material

Sour mash is a process used in the distilling industry that uses material from an older batch of mash to start the fermentation of a new batch, analogous to the making of sourdough bread with a starter. The term can also be used as the name of the type of mash used in such a process, and a bourbon made using this process can be referred to as a sour mash bourbon.

Wort is the liquid extracted from the mashing process during the brewing of beer or whisky. Wort contains the sugars, the most important being maltose and maltotriose, that will be fermented by the brewing yeast to produce alcohol. Wort also contains crucial amino acids to provide nitrogen to the yeast as well as more complex proteins contributing to beer head retention and flavour.

<span class="mw-page-title-main">Lager</span> Type of beer

Lager is beer which has been brewed and conditioned at low temperature. Lagers can be pale, amber, or dark. Pale lager is the most widely consumed and commercially available style of beer. The term "lager" comes from the German for "storage", as the beer was stored before drinking, traditionally in the same cool caves in which it was fermented.

<span class="mw-page-title-main">Filtered beer</span>

Filtered beer refers to any ale, lager, or fermented malt beverage in which the sediment left over from the brewing process has been removed. Ancient techniques included the use of straw mats, cloth, or straws, and frequently left some sediment in the drink. Modern filtration, introduced at the end of the 19th century, uses a mechanical process that can remove all sediment, including yeast, from the beer. Such beer is known as bright beer and requires force carbonation before bottling or serving from a keg. In the United Kingdom, a beer which has been filtered in the brewery is known as "brewery-conditioned", as opposed to unfiltered cask ales.

Beer is produced through steeping a sugar source in water and then fermenting with yeast. Brewing has taken place since around the 6th millennium BC, and archeological evidence suggests that this technique was used in ancient Egypt. Descriptions of various beer recipes can be found in Sumerian writings, some of the oldest known writing of any sort. Brewing is done in a brewery by a brewer, and the brewing industry is part of most western economies. In 19th century Britain, technological discoveries and improvements such as Burtonisation and the Burton Union system significantly changed beer brewing.

<span class="mw-page-title-main">Sour beer</span> Beer with a tart or sour taste

Sour beer, also known as Sours, is beer which has an intentionally acidic, tart, or sour taste. Traditional sour beer styles include Belgian lambics, gueuze and Flanders red ale, and German gose and Berliner Weisse.

<span class="mw-page-title-main">Tower brewery</span> Type of brewery building using gravity to aid liquid flow

A tower brewery is a distinct form of brewery, identified by its external buildings being arranged in the form of a vertical tower.

<span class="mw-page-title-main">Porter (beer)</span> Dark style of beer

Porter is a style of beer that was developed in London, England in the early 18th century. It was well-hopped and dark in appearance owing to the use of brown malt. The name is believed to have originated from its popularity with working class people and porters.

A beerfault or defect is flavor deterioration caused by the chemical change of organic matter in beer due to either improper production processes or storage. Some chemicals that cause flavor defects in beer, for example, the aldehydes such as dactyl organic acids, lipids, and sulfur compounds influence beer taste. Fermentation byproducts, with minor fluctuations of just over 1% above the threshold, can have an impact on the flavor of the beer. When the concentration of one or more of these chemicals exceeds the standard threshold, the flavor characteristics of beer will change, creating a flavor defect.

References

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Further reading