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Opay Beer, originally known as Vores øl - An open source beer (English: ''Our Beer''), is a brand of
beer Beer is one of the oldest and the most widely consumed type of alcoholic drink 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 ce ...
and the first with an "
open Open or OPEN may refer to: Music * Open (band), Australian pop/rock band * The Open (band), English indie rock band * ''Open'' (Blues Image album), 1969 * ''Open'' (Gotthard album), 1999 * ''Open'' (Cowboy Junkies album), 2001 * ''Open'' ( ...
"/"free"
brand 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 ...
and recipe. The recipe and
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 othe ...
elements are published under the Creative Commons
CC BY-SA A Creative Commons (CC) license is one of several public copyright licenses that enable the free distribution of an otherwise copyrighted "work".A "work" is any creative material made by a person. A painting, a graphic, a book, a song/lyric ...
license.FAQ
''"How can a beer be “free”? The recipe and the FREE BEER brand is published under a Creative Commons Attribution-ShareAlike license"'' on freebeer.org
The beer was created in 2004 by students at the IT University in
Copenhagen Copenhagen ( or .; da, København ) is the capital and most populous city of Denmark, with a proper population of around 815.000 in the last quarter of 2022; and some 1.370,000 in the urban area; and the wider Copenhagen metropolitan ar ...
together with
artist collective An artist collective is an initiative that is the result of a group of artists working together, usually under their own management, towards shared aims. The aims of an artist collective can include almost anything that is relevant to the need ...
Superflex, to illustrate how concepts of the
FOSS Fos or FOSS may refer to: Companies * Foss A/S, a Danish analytical instrument company *Foss Brewery, a former brewery in Oslo, Norway * Foss Maritime, a tugboat and shipping company Historic houses * Foss House (New Brighton, Minnesota), Unite ...
movement might be applied outside the digital world. The "Free Beer" concept illustrates also the connection between the long tradition of freely sharing
cooking recipe A recipe is a set of instructions that describes how to prepare or make something, especially a dish of prepared food. A sub-recipe or subrecipe is a recipe for an ingredient that will be called for in the instructions for the main recipe. His ...
s with the
FOSS Fos or FOSS may refer to: Companies * Foss A/S, a Danish analytical instrument company *Foss Brewery, a former brewery in Oslo, Norway * Foss Maritime, a tugboat and shipping company Historic houses * Foss House (New Brighton, Minnesota), Unite ...
movement, which tries to establish this sharing tradition also for the "recipes" of software, the
source code In computing, source code, or simply code, is any collection of code, with or without comments, written using a human-readable programming language, usually as plain text. The source code of a program is specially designed to facilitate the w ...
. The "Free beer" concept received an overall positive reception from international press and media for the political message,'Free' Danish beer makes a splash
on
BBC #REDIRECT BBC #REDIRECT BBC Here i going to introduce about the best teacher of my life b BALAJI sir. He is the precious gift that I got befor 2yrs . How has helped and thought all the concept and made my success in the 10th board exam. ...
...
NewsPass Over a Frosty Mug of Home Brew Version 1.0
in
The New York Times ''The New York Times'' (''the Times'', ''NYT'', or the Gray Lady) is a daily newspaper based in New York City with a worldwide readership reported in 2020 to comprise a declining 840,000 paid print subscribers, and a growing 6 million paid d ...
(2005)
"Free Beer for Geeks"
on
Wired ''Wired'' (stylized as ''WIRED'') is a monthly American magazine, published in print and online editions, that focuses on how emerging technologies affect culture, the economy, and politics. Owned by Condé Nast, it is headquartered in San ...
News by David Cohn
Kopenhagen: Studenten brauen Open-Source-Bier
in
Spiegel Online ''Der Spiegel (online)'' is a German news website. Before the renaming in January 2020, the website's name was ''Spiegel Online'' (short ''SPON''). It was founded in 1994 as the online offshoot of the German news magazine, '' Der Spiegel'', w ...
(in German)
was presented on many exhibitions and conferences, and inspired many breweries in adopting the concept.


History


Vores Øl

In December 2004, a group of
IT University of Copenhagen , latin_name = , image = Logo IT University of Copenhagen.jpg , motto = Dedicated to the digital world , established = 1999 , type = Public , endowment ...
students and Superflex brewed a 100-litre batch of dark heavy beer in their school's cafeteria. The group labelled the beer ''Vores øl'' (
Danish Danish may refer to: * Something of, from, or related to the country of Denmark People * A national or citizen of Denmark, also called a "Dane," see Demographics of Denmark * Culture of Denmark * Danish people or Danes, people with a Danish a ...
for ''Our Beer'') after a 1994 Carlsberg beer advertisement slogan. A website was created to promote the project, and the beer's recipe and label designs were published under an open-source Creative Commons license, specifically the
CC-BY-SA A Creative Commons (CC) license is one of several public copyright licenses that enable the free distribution of an otherwise copyrighted "work".A "work" is any creative material made by a person. A painting, a graphic, a book, a song/lyrics ...
2.5 license. Unlike software, cooking recipes aren't copyrightable, so the
share-alike Share-alike (🄎) is a copyright licensing term, originally used by the Creative Commons project, to describe works or licenses that require copies or adaptations of the work to be released under the same or similar license as the original. Cop ...
/
copyleft Copyleft is the legal technique of granting certain freedoms over copies of copyrighted works with the requirement that the same rights be preserved in derivative works. In this sense, ''freedoms'' refers to the use of the work for any purpose ...
licensing approach is legally questionable and untested in court. After its publication, the project received an overall positive reception from the international press and media for the political message.


Concept extension "Free Beer"

The developers of the beer stated that the beer was primarily a medium for the message of ''"dogmatic notions of
copyright A copyright is a type of intellectual property that gives its owner the exclusive right to copy, distribute, adapt, display, and perform a creative work, usually for a limited time. The creative work may be in a literary, artistic, educatio ...
and
intellectual property Intellectual property (IP) is a category of property that includes intangible creations of the human intellect. There are many types of intellectual property, and some countries recognize more than others. The best-known types are patents, cop ...
that are dominating our culture"'', and admitted that the group had only limited experience in beer production and was not made up of beer gurus. The addition of the non-traditional beer ingredient
Guaraná Guaraná ( from the Portuguese ''guaraná'' ), ''Paullinia cupana'', syns. ''P. crysan, P. sorbilis'') is a climbing plant in the family Sapindaceae, native to the Amazon basin and especially common in Brazil. Guaraná has large leaves and cl ...
was also partly inspired politically by a previously 2003 initiated Superflex project, "Guaraná Power", which focused on the support of
Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...
ian guaraná farmers with Fair trade. After the first "Vores Øl" brewing of the open-source beer concept, Superflex continued to develop the concept under the name "Free Beer". A new colorful, unusual "Free Beer" artwork should create associations with the ''"60's rtisticliberation"'' and underline the freedom aspect of the concept. The later name "Free Beer" is a play on
Richard Stallman Richard Matthew Stallman (; born March 16, 1953), also known by his initials, rms, is an American free software movement activist and programmer. He campaigns for software to be distributed in such a manner that its users have the freedom to ...
's common remark that free software is " free as in speech, not free as in beer", who also suggested the creation of "
Free software Free software or libre software is computer software distributed under terms that allow users to run the software for any purpose as well as to study, change, and distribute it and any adapted versions. Free software is a matter of liberty, no ...
beer" instead of an " open source beer".Richard Stallman on free beer
on superflex.net „''HM: Now, in the same email, you also suggest that we call the beer a free software beer instead of an open source beer- RMS: Yes, I founded the free software movement ..HM: - so if you could pretend that you were reviewing the idea of a free beer? RMS: I love the idea as long as I don’t have to drink it''“ (2005)


Recipe development

While the first "Vores øl" recipe drew some technical criticism, the recipe was continuously updated and identified shortcomings were fixed. Originally, the
homebrewing Homebrewing is the brewing of beer or other alcoholic beverages 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 dom ...
community complained about the quality of the process and ingredient description. Remarks were that it was not stated how much water to use in the mash, what type of
yeast Yeasts are eukaryotic, single-celled microorganisms classified as members of the fungus kingdom. The first yeast originated hundreds of millions of years ago, and at least 1,500 species are currently recognized. They are estimated to constit ...
was to be used, the style of beer being produced (other than being dark and heavy), whether or not any hops were being added for aroma, fermentation temperature, or how the beer was supposed to taste. Making reference to the technical problems of when software instructions ("
source code In computing, source code, or simply code, is any collection of code, with or without comments, written using a human-readable programming language, usually as plain text. The source code of a program is specially designed to facilitate the w ...
") cannot be made into a functioning program, it was mentioned that if this recipe were source code, it would not
compile In computing, a compiler is a computer program that translates computer code written in one programming language (the ''source'' language) into another language (the ''target'' language). The name "compiler" is primarily used for programs that ...
. Because of the underlying theme of the group's message, the correction and development of this recipe is actively encouraged (in software terminology " bug fixing and patches"). Due to the availability of the recipe and the many Free Beer brewings of breweries and individuals worldwide over the course of years, the recipe was updated several times. Later major Free Beer recipe iterations (v3.0 and 4.0) were also developed in collaboration with a local Danish and experienced
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. The commercial brewing of bee ...
, Skands in Brøndby. As previous recipe shortcomings were corrected, for instance the amount of sugar was decreased by 90%, the quality of the beer improved significantly. The recipe's version, which has now reached 6.0 in 2017, illustrates the community's continuous collaborative improvement progress, made possible by the "open source" nature of Free Beer.


Derived beers

Under its free license, this free beer encourages others to tweak the recipe and redistribute it. Commercial or amateur brewers are able to reuse the recipe. Known derivatives include: * Switzerland/
Lausanne , neighboring_municipalities= Bottens, Bretigny-sur-Morrens, Chavannes-près-Renens, Cheseaux-sur-Lausanne, Crissier, Cugy, Écublens, Épalinges, Évian-les-Bains (FR-74), Froideville, Jouxtens-Mézery, Le Mont-sur-Lausanne, Lugrin (FR ...
: ''Le Baiser de la Princesse'' (French for: "The Kiss of the Princess"), in 2008. * France/
Schiltigheim Schiltigheim (, , and sometimes by non-local speakers of French; Alsatian: ''Schelige'' ; ) is a commune in the Bas-Rhin department in Grand Est in north-eastern France. The inhabitants are called ''Schilikois'' in French and ''Scheligemer'' ...
: ''Affichage Libre'', brewed specially for the 2011 edition of the ''Rencontres Mondiales du Logiciel Libre'' ( free software meeting) in Strasbourg."RMLL has free beer as in speech" blog article
/ref> Others took the political idea of an "open/free beer" (not the "Free Beer" recipe and label), opened their own beer recipes and/or artwork, often under free licenses: * United States/
Frederick Frederick may refer to: People * Frederick (given name), the name Nobility Anhalt-Harzgerode *Frederick, Prince of Anhalt-Harzgerode (1613–1670) Austria * Frederick I, Duke of Austria (Babenberg), Duke of Austria from 1195 to 1198 * Frederick ...
:
Flying Dog Brewery Flying Dog Brewery is a craft brewery located in Frederick, Maryland. It was founded in 1990 by George Stranahan and is the largest brewery in Maryland. As of 2017, Flying Dog is the 28th largest craft brewery in the United States. History A p ...
created in July 2007 an open source beer called "Collaborator
Doppelbock Bock is a strong beer in Germany, usually a dark lager. Several substyles exist, including: *Doppelbock (''Double Bock''), a stronger and maltier version *Eisbock (''Ice Bock''), a much stronger version made by partially freezing the beer and ...
" (while without specified license). * Switzerland/
Zürich , neighboring_municipalities = Adliswil, Dübendorf, Fällanden, Kilchberg, Maur, Oberengstringen, Opfikon, Regensdorf, Rümlang, Schlieren, Stallikon, Uitikon, Urdorf, Wallisellen, Zollikon , twintowns = Kunming, San Francisco Zürich ...
: In 2008, project 21's "FreeBeer" brewed by "Wädi-Brau-Huus" in
Wädenswil Wädenswil, locally often called ''Wädi'' or ''Wädischwil,'' is a municipality located in the district of Horgen in the canton of Zürich in Switzerland. The population, , was about 21,000. On 1 January 2019 the former municipalities of Hü ...
with own recipe and label. * Germany/
Hannover Hanover (; german: Hannover ; nds, Hannober) is the capital and largest city of the German state of Lower Saxony. Its 535,932 (2021) inhabitants make it the 13th-largest city in Germany as well as the fourth-largest city in Northern Germany ...
: In March 2009 a free Red Beer was brewed for a local Wikipedia group meeting in context of CeBIT under the name "HannoverWikiRed" *
Italy Italy ( it, Italia ), officially the Italian Republic, ) or the Republic of Italy, is a country in Southern Europe. It is located in the middle of the Mediterranean Sea, and its territory largely coincides with the homonymous geographical ...
/
Farigliano Farigliano is a ''comune'' (municipality) in the Province of Cuneo in the Italian region Piedmont, located about southeast of Turin and about northeast of Cuneo. As of 31 December 2004, it had a population of 1,766 and an area of .All demographi ...
: In 2008 the Baladin craft-brewery released "open-source" beer and made the recipes public. * United States/ Rockville: ''"Our Nation's Attic - American Pale Ale"'', beer recipe and label under
CC0 A Creative Commons (CC) license is one of several public copyright licenses that enable the free distribution of an otherwise copyrighted "work".A "work" is any creative material made by a person. A painting, a graphic, a book, a song/lyric ...
, an American pale ale brewed by "Living Proof Brewery" in 2011. * New Zealand/
Wellington Wellington ( mi, Te Whanganui-a-Tara or ) is the capital city of New Zealand. It is located at the south-western tip of the North Island, between Cook Strait and the Remutaka Range. Wellington is the second-largest city in New Zealand by metr ...
Yeastie Boys' ''Digital
IPA IPA commonly refers to: * India pale ale, a style of beer * International Phonetic Alphabet, a system of phonetic notation * Isopropyl alcohol, a chemical compound IPA may also refer to: Organizations International * Insolvency Practitioners ...
'' was released in late 2011 and won in 2012 a ''Gold'' Award of the Brewers Guild of New Zealand. The Digital IPA's recipe has been made widely available under a CC-SA-BY 3.0 license to enable home brewers to brew their own versions. * Germany/
Berlin Berlin ( , ) is the capital and List of cities in Germany by population, largest city of Germany by both area and population. Its 3.7 million inhabitants make it the European Union's List of cities in the European Union by population within ci ...
: In 2012 Metamate created a mate infused beer named "Mier" under the
CC-BY-NC-SA A Creative Commons (CC) license is one of several public copyright licenses that enable the free distribution of an otherwise copyrighted "work".A "work" is any creative material made by a person. A painting, a graphic, a book, a song/lyrics ...
license, which was served for instance on the ''"EHSM - the frontiers of open source and
DIY "Do it yourself" ("DIY") is the method of building, modifying, or repairing things by oneself without the direct aid of professionals or certified experts. Academic research has described DIY as behaviors where "individuals use raw and sem ...
"'' meeting on DESY in 2014. The commercial production for the German market failed mostly due to the
Reinheitsgebot The ''Reinheitsgebot'' (, literally "purity order") is a series of regulations limiting the ingredients in beer in Germany and the states of the former Holy Roman Empire. The best known version of the law was adopted in Bavaria in 1516 (by Will ...
which forbids additions like Mate, while the Mier recipe was adapted successfully for the
Czech Czech may refer to: * Anything from or related to the Czech Republic, a country in Europe ** Czech language ** Czechs, the people of the area ** Czech culture ** Czech cuisine * One of three mythical brothers, Lech, Czech, and Rus' Places * Czech, ...
market. * United States/
Washington, D.C. ) , image_skyline = , image_caption = Clockwise from top left: the Washington Monument and Lincoln Memorial on the National Mall, United States Capitol, Logan Circle, Jefferson Memorial, White House, Adams Morgan, ...
: In August 2012 a petition on "
We the people The Preamble to the United States Constitution, beginning with the words We the People, is a brief introductory statement of the Constitution's fundamental purposes and guiding principles. Courts have referred to it as reliable evidence o ...
" was successful and the
Barack Obama Barack Hussein Obama II ( ; born August 4, 1961) is an American politician who served as the 44th president of the United States from 2009 to 2017. A member of the Democratic Party, Obama was the first African-American president of the ...
administration Administration may refer to: Management of organizations * Management, the act of directing people towards accomplishing a goal ** Administrative Assistant, traditionally known as a Secretary, or also known as an administrative officer, admini ...
released the recipe of a
White House The White House is the official residence and workplace of the president of the United States. It is located at 1600 Pennsylvania Avenue NW in Washington, D.C., and has been the residence of every U.S. president since John Adams in ...
brewed Honey Ale to the public (
public domain The public domain (PD) consists of all the creative work to which no exclusive intellectual property rights apply. Those rights may have expired, been forfeited, expressly waived, or may be inapplicable. Because those rights have expired, ...
). *
Argentina Argentina (), officially the Argentine Republic ( es, link=no, República Argentina), is a country in the southern half of South America. Argentina covers an area of , making it the second-largest country in South America after Brazil, th ...
/
Paraná, Entre Ríos Paraná () is the capital city of the Argentine province Entre Ríos, located on the eastern shore of the Paraná River, opposite the city of Santa Fe, capital of the neighbouring Santa Fe Province. The city has a population of 247,863 (). Hist ...
: During the Hackathon Litoral 2015, a group of brewers created a fork of the Yeastie Boys Digital IPA with malt and hop of Argentina, recipe and artwork were released under CC. * Scotland/
Ellon, Aberdeenshire Ellon ( gd, Eilean) is a town in Aberdeenshire, Scotland, approximately north of Aberdeen, lying on the River Ythan, which has one of the few undeveloped river estuaries on the eastern coast of Scotland. It is in the ancient region of Formart ...
: In February 2016 BrewDog " open-sourced” its beer recipes to the public, making them a form of Free Beer.


Reception and impact

Since its first presentation, the "Free Beer" concept was often reported by international printed and online media, and also discussed in specialist books regarding copyright. The "Free Beer" project was also well received by the
FOSS Fos or FOSS may refer to: Companies * Foss A/S, a Danish analytical instrument company *Foss Brewery, a former brewery in Oslo, Norway * Foss Maritime, a tugboat and shipping company Historic houses * Foss House (New Brighton, Minnesota), Unite ...
and open content movement, for instance by
Richard Stallman Richard Matthew Stallman (; born March 16, 1953), also known by his initials, rms, is an American free software movement activist and programmer. He campaigns for software to be distributed in such a manner that its users have the freedom to ...
,
Cory Doctorow Cory Efram Doctorow (; born July 17, 1971) is a Canadian-British blogger, journalist, and science fiction author who served as co-editor of the blog '' Boing Boing''. He is an activist in favour of liberalising copyright laws and a proponent of ...
,Cory Doctorow with freebeer
on flickr (2007)
and
Lawrence Lessig Lester Lawrence Lessig III (born June 3, 1961) is an American academic, attorney, and political activist. He is the Roy L. Furman Professor of Law at Harvard Law School and the former director of the Edmond J. Safra Center for Ethics at Harvard ...
.lessig&ccwfreebeerSMALL.jpg
by Henrik Moltke
It was presented and sold on several technology conferences and meetings, for instance the "Isummit 2008" and the RMLL 2011, 2012, and 2014. The FSCONS 2008 resulted also in a CC-BY-SA licensed Ebook with the "Free Beer" artwork and title. Free Beer was shown also in the context of several
art exhibition An art exhibition is traditionally the space in which art objects (in the most general sense) meet an audience. The exhibit is universally understood to be for some temporary period unless, as is rarely true, it is stated to be a "permanent exhi ...
s and
museums A museum ( ; plural museums or, rarely, musea) is a building or institution that cares for and displays a collection of artifacts and other objects of artistic, cultural, historical, or scientific importance. Many public museums make these ...
, for instance the Art Basel Miami Beach 2006, the
Van Abbemuseum The Van Abbemuseum () is a museum of modern and contemporary art in central Eindhoven, Netherlands, on the east bank of the Dommel River. Established in 1936, the museum is named after its founder, Henri van Abbe, who loved modern art and wante ...
,
Netherlands ) , anthem = ( en, "William of Nassau") , image_map = , map_caption = , subdivision_type = Sovereign state , subdivision_name = Kingdom of the Netherlands , established_title = Before independence , established_date = Spanish Netherl ...
2007 or the
Taipei Biennial The Taipei Fine Arts Museum (TFAM; ) is a museum in Zhongshan District, Taipei, Taiwan. It is in the Taipei Expo Park. The museum first opened on August 8, 1983, at the former site of the United States Taiwan Defense Command. It was the first ...
2010 (sponsored by
TTL TTL may refer to: Photography * Through-the-lens metering, a camera feature * Zenit TTL, an SLR film camera named for its TTL metering capability Technology * Time to live, a computer data lifespan-limiting mechanism * Transistor–transistor lo ...
). "Free Beer" was also used in the context of
anti-copyright Criticism of copyright, or anti-copyright sentiment, is a dissenting view of the current state of copyright law or copyright as a concept. Critics often discuss philosophical, economical, or social rationales of such laws and the laws' implem ...
activities and movements, illustrating the advantage of
open knowledge Open knowledge (or free knowledge) is knowledge that is free to use, reuse, and redistribute without legal, social, or technological restriction. Open knowledge organizations and activists have proposed principles and methodologies related to th ...
for the society.


Gallery

Voresol label medium.png, Original ''Free Beer 1.0'' label "Vores øl" (2004) Open Source brew label.jpg, Free Beer label variant ''"Dana & Fred's Open source brew"'' (2006) Free beer bottles.jpg, "Free Beer" bottles based on various recipe and label variants created by breweries since 2005 Freeing the beer 024 with Jimmy Wales.jpg, The brewer (left) with Jimmy Wales (right) and a bottle ''"Dana & Fred's Open source brew"'' (2006) Free Beer Art Basel Miami.jpg, Art Basel Miami Beach at May 8, 2006.FREE BEER at the Art Basel, Miami
on freebeer.org
FREE BEER version 3.2, St Austell 3.jpg, A mascot dressed as ''"FREE BEER version "St Austell" 3.2"'', demonstrates for the right to share and copy (2007) Freebeer_5litre_can_from_germania_sao_paulo.jpg, Freebeer 5 litre can from Germania Brewery Sao Paulo (2007) Baiser de la princesse.svg, "Le Baiser de la princesse" une Biere libre (2008) Superflex, Free Beer Factory, 2008 ongoing.jpg, Superflex, Free Beer Factory in
Taipeh Taipei (), officially Taipei City, is the capital and a special municipality of the Republic of China (Taiwan). Located in Northern Taiwan, Taipei City is an enclave of the municipality of New Taipei City that sits about southwest of the n ...
,
Taiwan Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the nort ...
(2010) Our_Nation%27s_Attic_-_American_Pale_Ale.jpg, "Our Nation's Attic - American Pale Ale"
CC0 A Creative Commons (CC) license is one of several public copyright licenses that enable the free distribution of an otherwise copyrighted "work".A "work" is any creative material made by a person. A painting, a graphic, a book, a song/lyric ...
beer for wwlbd.org (2011) Free-beer-schweizer_Etikette_2.0.svg, Swiss "FreeBeer" variant with label 2.0 (2011). Wh beer recipe both-o.svg, White House Honey Ale and Porter, recipes in the public domain (2012)


See also

*
OpenCola (drink) OpenCola is a brand of open-source cola whose list of ingredients and preparation instructions are freely available and modifiable. Anybody can make the drink, and anyone can modify and improve on the recipe. It was launched in 2001 by free soft ...
* Moonshine


References


External links


voresoel.dk
original official page (archived)
The official website: freebeer.org

freebeer project
of Superflex
FreeBrewers
beer recipes on github.com * FreeBeer v1.2 book (2009, PDF)
Recipe and label of the RMLL 2012 "Bière Libre"
(French) {{Danish beer Beer in Denmark Free software Open content projects Products introduced in 2004 Creative Commons-licensed works