118-523: The European Brewery Convention ( EBC ) is an organisation representing the technical and scientific interests of the brewing sector in Europe. The EBC defines itself as the scientific and technological arm of The Brewers of Europe . Among brewers, EBC is perhaps best known for the EBC units measuring beer and wort colour, as well as EBC units for quantifying turbidity (also known as haze) in beer. Equally,
236-594: A "mash tun" – an insulated brewing vessel with a false bottom . The end product of mashing is called a "mash". Mashing usually takes 1 to 2 hours, and during this time the various temperature rests activate different enzymes depending upon the type of malt being used, its modification level, and the intention of the brewer. The activity of these enzymes convert the starches of the grains to dextrins and then to fermentable sugars such as maltose . A mash rest from 49–55 °C (120–131 °F) activates various proteases , which break down proteins that might otherwise cause
354-486: A compendium of laboratory methods for the malting and brewing industry. Formerly issued in three languages (German and French, in addition to English) it is now published only in English. Until 2019, EBC's publisher for Analytica-EBC was Fachverlag Hans-Carl of Nuremberg, Germany, who used to handle order taking and shipment of all of EBC's publications via their online bookshop, Carllibri . Since 2019, Analytica-EBC access
472-674: A cool temperature, the preservative nature will decrease. Brewing is the sole major commercial use of hops. Yeast is the microorganism that is responsible for fermentation in beer. Yeast metabolises the sugars extracted from grains, which produces alcohol and carbon dioxide , and thereby turns wort into beer. In addition to fermenting the beer, yeast influences the character and flavour. The dominant types of yeast used to make beer are Saccharomyces cerevisiae , known as ale yeast, and Saccharomyces pastorianus , known as lager yeast; Brettanomyces ferments lambics , and Torulaspora delbrueckii ferments Bavarian weissbier . Before
590-408: A cooling medium which can be cooled to below the freezing point , which allows a finer control over the wort-out temperature, and also enables cooling to around 10 °C (50 °F). After cooling, oxygen is often dissolved into the wort to revitalize the yeast and aid its reproduction. While boiling, it is useful to recover some of the energy used to boil the wort. On its way out of the brewery,
708-425: A degree that brewers of pale ales will add gypsum to the local water in a process known as Burtonisation . The starch source in a beer provides the fermentable material and is a key determinant of the strength and flavour of the beer. The most common starch source used in beer is malted grain. Grain is malted by soaking it in water, allowing it to begin germination , and then drying the partially germinated grain in
826-497: A domestic scale, although by the 7th century AD beer was also being produced and sold by European monasteries . 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. The development of hydrometers and thermometers changed brewing by allowing the brewer more control of
944-408: A feature used to drive the spent grain out of the vessel. The mash filter is a plate-and-frame filter. The empty frames contain the mash, including the spent grains, and have a capacity of around one hectoliter. The plates contain a support structure for the filter cloth. The plates, frames, and filter cloths are arranged in a carrier frame like so: frame, cloth, plate, cloth, with plates at each end of
1062-573: A feature, such as adding wheat to aid in retaining the foamy head of the beer. The most common starch source is ground cereal or "grist" - the proportion of the starch or cereal ingredients in a beer recipe may be called grist, grain bill, or simply mash ingredients . Steps in the brewing process include malting , milling , mashing , lautering , boiling , fermenting , conditioning , filtering , and packaging . There are three main fermentation methods: warm , cool and spontaneous . Fermentation may take place in an open or closed fermenting vessel;
1180-500: A fine powder such as diatomaceous earth (also called kieselguhr), which is added to the beer to form a filtration bed which allows liquid to pass, but holds onto suspended particles such as yeast. Filters range from rough filters that remove much of the yeast and any solids (e.g., hops, grain particles) left in the beer, to filters tight enough to strain colour and body from the beer. Filtration ratings are divided into rough, fine, and sterile. Rough filtration leaves some cloudiness in
1298-405: A kiln. Malting grain produces enzymes that will allow conversion from starches in the grain into fermentable sugars during the mash process. Different roasting times and temperatures are used to produce different colours of malt from the same grain. Darker malts will produce darker beers. Nearly all beer includes barley malt as the majority of the starch. This is because of its fibrous husk, which
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#17327722426441416-403: A less hazy product. Some beers undergo an additional fermentation in the bottle giving natural carbonation. This may be a second and/or third fermentation. They are bottled with a viable yeast population in suspension. If there is no residual fermentable sugar left, sugar or wort or both may be added in a process known as priming. The resulting fermentation generates CO 2 that is trapped in
1534-475: A particular purpose, such as brewing beers with a high abv. Brewers in Bavaria had for centuries been selecting cold-fermenting yeasts by storing ("lagern") their beers in cold alpine caves. The process of natural selection meant that the wild yeasts that were most cold tolerant would be the ones that would remain actively fermenting in the beer that was stored in the caves. A sample of these Bavarian yeasts
1652-591: A secondary fermentation may also occur in the cask or bottle . There are several additional brewing methods , such as Burtonisation , double dropping , and Yorkshire Square , as well as post-fermentation treatment such as filtering , and barrel-ageing . Brewing has taken place since around the 6th millennium BC, and archaeological evidence suggests emerging civilizations including China , ancient Egypt , and Mesopotamia brewed beer. Descriptions of various beer recipes can be found in cuneiform (the oldest known writing) from ancient Mesopotamia . In Mesopotamia
1770-417: A section of them. Filtering stabilises the flavour of beer, holding it at a point acceptable to the brewer, and preventing further development from the yeast, which under poor conditions can release negative components and flavours. Filtering also removes haze, clearing the beer, and so giving it a "polished shine and brilliance". Beer with a clear appearance has been commercially desirable for brewers since
1888-402: A solid) out of the beer along with protein solids and are found only in trace amounts in the finished product. This process makes the beer appear bright and clean, rather than the cloudy appearance of ethnic and older styles of beer such as wheat beers . Examples of clarifying agents include isinglass , obtained from swim bladders of fish; Irish moss , a seaweed; kappa carrageenan , from
2006-760: A starch source, such as malted barley , able to be fermented (converted into alcohol); a brewer's yeast to produce the fermentation; and a flavouring, such as hops , to offset the sweetness of the malt. A mixture of starch sources may be used, with a secondary saccharide, such as maize (corn), rice, or sugar, these often being termed adjuncts , especially when used as a lower-cost substitute for malted barley. Less widely used starch sources include millet , sorghum , and cassava root in Africa, potato in Brazil, and agave in Mexico, among others. The most common starch source
2124-422: A system that offered better cross-comparability of data in the interests of better supply chain management. The network was founded, together with EBC's sister association Euromalt , to develop a comparative platform for malting barley variety data across Europe. This involved creating an electronic platform of data comparison as well as organising trials for up to 20 promising barley varieties. The time-plan foresaw
2242-543: A very few breweries still use wooden vats for fermentation as wood is difficult to keep clean and infection-free and must be repitched more or less yearly. There are three main fermentation methods, warm , cool , and wild or spontaneous . Fermentation may take place in open or closed vessels. There may be a secondary fermentation which can take place in the brewery, in the cask or in the bottle . Brewing yeasts are traditionally classed as "top-cropping" (or "top-fermenting") and "bottom-cropping" (or "bottom-fermenting");
2360-518: Is a network of brewing scientists from breweries and academic research institutes. The membership of the group currently stands at about 60. The Brewing Science Group organises a technical meeting every two years where members have the opportunity of presenting their latest findings within an atmosphere of collegiality and confidentiality. Their meetings may be regarded as "testing ground" for papers presented at EBC congresses and other major brewing technical meetings. BSG meetings are open to professionals in
2478-438: Is added to the finished beer. The active yeast will restart fermentation in the finished beer, and so introduce fresh carbon dioxide; the conditioning tank will be then sealed so that the carbon dioxide is dissolved into the beer producing a lively "condition" or level of carbonation. The kräusening method may also be used to condition bottled beer. Lagers are stored at cellar temperature or below for 1–6 months while still on
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#17327722426442596-467: Is called saccharification which occurs between the temperatures 60–70 °C (140–158 °F). The result of the mashing process is a sugar-rich liquid or "wort" , which is then strained through the bottom of the mash tun in a process known as lautering . Prior to lautering, the mash temperature may be raised to about 75–78 °C (167–172 °F) (known as a mashout) to free up more starch and reduce mash viscosity. Additional water may be sprinkled on
2714-399: Is conducted so that it is even and intense – a continuous "rolling boil". The boil on average lasts between 45 and 90 minutes, depending on its intensity, the hop addition schedule, and volume of water the brewer expects to evaporate. At the end of the boil, solid particles in the hopped wort are separated out, usually in a vessel called a "whirlpool". Copper is the traditional material for
2832-470: Is cooled in open vats (called " coolships "), where the yeasts and microbiota present in the brewery (such as Brettanomyces ) are allowed to settle to create a spontaneous fermentation, and are then conditioned or matured in oak barrels for typically one to three years. After an initial or primary fermentation, beer is conditioned , matured or aged, in one of several ways, which can take from 2 to 4 weeks, several months, or several years, depending on
2950-457: Is derived from the internal archives of EBC which are housed at The Brewers of Europe. The information is not in the public domain and, for the most part, does not exist in electronic format. For more information, reference should be made to the EBC website . The EBC can be contacted via this website; also with respect to researchers seeking to research the EBC's archives. Brewing Brewing
3068-401: Is fully distributed through the beer while it is fermenting, and both equally flocculate (clump together and precipitate to the bottom of the vessel) when fermentation is finished. By no means do all top-cropping yeasts demonstrate this behaviour, but it features strongly in many English yeasts that may also exhibit chain forming (the failure of budded cells to break from the mother cell), which
3186-618: Is granted through BrewUp portal, at https://brewup.eu/ After the former Institute of Brewing (now The Institute of Brewing and Distilling , London) had dissolved the IoB Analysis Committee in 1997, EBC was requested to continue incorporating and amalgamating the IoB methods with the EBC methods. As a result, many methods that had originally been IoB methods have now been incorporated, some of them have attained IM status (international method). Fruitful contacts are maintained with
3304-718: Is ground cereal or "grist" - the proportion of the starch or cereal ingredients in a beer recipe may be called grist, grain bill, or simply mash ingredients . Beer is composed mostly of water. Regions have water with different mineral components; as a result, different regions were originally better suited to making certain types of beer, thus giving them a regional character. For example, Dublin has hard water well suited to making stout , such as Guinness ; while Pilsen has soft water well suited to making pale lager , such as Pilsner Urquell . The waters of Burton in England contain gypsum , which benefits making pale ale to such
3422-580: Is important not only in the sparging stage of brewing (in which water is washed over the mashed barley grains to form the wort ) but also as a rich source of amylase , a digestive enzyme that facilitates conversion of starch into sugars. Other malted and unmalted grains (including wheat, rice, oats, and rye , and, less frequently, maize (corn) and sorghum) may be used. In recent years, a few brewers have produced gluten-free beer made with sorghum with no barley malt for people who cannot digest gluten -containing grains like wheat, barley, and rye. Hops are
3540-513: Is in the technical sense different from true flocculation. The most common top-cropping brewer's yeast, Saccharomyces cerevisiae , is the same species as the common baking yeast. However, baking and brewing yeasts typically belong to different strains, cultivated to favour different characteristics: baking yeast strains are more aggressive, in order to carbonate dough in the shortest amount of time; brewing yeast strains act slower, but tend to tolerate higher alcohol concentrations (normally 12–15% abv
3658-426: Is kilning when the malt goes through a very high temperature drying in a kiln; with gradual temperature increase over several hours. When kilning is complete, the grains are now termed malt , and they will be milled or crushed to break apart the kernels and expose the cotyledon , which contains the majority of the carbohydrates and sugars; this makes it easier to extract the sugars during mashing. Mashing converts
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3776-571: Is less clear in modern brewing with the use of cylindro-conical tanks. Generally, warm-fermented beers, which are usually termed ale , are ready to drink within three weeks after the beginning of fermentation, although some brewers will condition or mature them for several months. When a beer has been brewed using a cool fermentation of around 10 °C (50 °F), compared to typical warm fermentation temperatures of 18 °C (64 °F), then stored (or lagered) for typically several weeks (or months) at temperatures close to freezing point, it
3894-581: Is organised on a specific technical subject of interest to brewers and maltsters usually every two years (in-between congress years). In September 2010, a highly acclaimed EBC hop symposium took place at the Deutsches Hopfenmuseum in Wolnzach / Hallertau (Germany). A total of 131 delegates registered for this event. "From Chiller to Filler", a workshop type symposium on cold-bloc management, fermentation, lagering, filtration and related issues
4012-443: Is pumped into the heat exchanger, and goes through every other gap between the plates. The cooling medium, usually water from a cold liquor tank , goes through the other gaps. The ridges in the plates ensure turbulent flow. A good heat exchanger can drop 95 °C (203 °F) wort to 20 °C (68 °F) while warming the cooling medium from about 10 °C (50 °F) to 80 °C (176 °F). The last few plates often use
4130-420: Is recorded. Before the thirteenth century, beer was flavoured with plants such as yarrow , wild rosemary , and bog myrtle , and other ingredients such as juniper berries , aniseed and ginger , which would be combined into a mixture known as gruit and used as hops are now used; between the thirteenth and the sixteenth century, during which hops took over as the dominant flavouring, beer flavoured with gruit
4248-414: Is termed a " lager ". During the lagering or storage phase several flavour components developed during fermentation dissipate, resulting in a "cleaner" flavour. Though it is the slow, cool fermentation and cold conditioning (or lagering) that defines the character of lager, the main technical difference is with the yeast generally used, which is Saccharomyces pastorianus . Technical differences include
4366-876: Is the maximum, though under special treatment some ethanol-tolerant strains can be coaxed up to around 20%). Modern quantitative genomics has revealed the complexity of Saccharomyces species to the extent that yeasts involved in beer and wine production commonly involve hybrids of so-called pure species. As such, the yeasts involved in what has been typically called top-cropping or top-fermenting ale may be both Saccharomyces cerevisiae and complex hybrids of Saccharomyces cerevisiae and Saccharomyces kudriavzevii . Three notable ales, Chimay , Orval and Westmalle , are fermented with these hybrid strains, which are identical to wine yeasts from Switzerland. In general, yeasts such as Saccharomyces cerevisiae are fermented at warm temperatures between 15 and 20 °C (59 and 68 °F), occasionally as high as 24 °C (75 °F), while
4484-422: Is the process in which the beer ages, the flavour becomes smoother, and flavours that are unwanted dissipate. After conditioning for a week to several months, the beer may be filtered and force carbonated for bottling, or fined in the cask . Mashing is the process of combining a mix of milled grain (typically malted barley with supplementary grains such as corn , sorghum , rye or wheat), known as
4602-494: Is the production of beer by steeping a starch source (commonly cereal grains, the most popular of which is barley ) 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 , China , and Mesopotamia , brewed beer. Since
4720-571: Is typically around 60°, an angle that will allow the yeast to flow towards the cone's apex, 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 which have fallen to the cone's apex can be simply flushed out of 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, which makes harvesting top-fermenting yeasts very easy. The open tops of
4838-447: Is used to cool the wort in a heat exchanger, the water is significantly warmed. In an efficient brewery, cold water is passed through the heat exchanger at a rate set to maximize the water's temperature upon exiting. This now-hot water is then stored in a hot water tank. Fermentation takes place in fermentation vessels which come in various forms, from enormous cylindroconical vessels, through open stone vessels, to wooden vats. After
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4956-409: Is where chemical reactions take place, including sterilization of the wort to remove unwanted bacteria, releasing of hop flavours, bitterness and aroma compounds through isomerization , stopping of enzymatic processes, precipitation of proteins, and concentration of the wort. Finally, the vapours produced during the boil volatilise off-flavours , including dimethyl sulfide precursors. The boil
5074-674: The American Society of Brewing Chemists ( ASBC ) and the Mitteleuropäische Brautechnische Analysenkommission ( MEBAK ), both organisations well known for issuing their own analytical methods to the beer industry. An electronic version of the Analytica-EBC was released in 2018, and is kept being updated for subscribers via the knowledge portal of The Brewers of Europe at https://brewup.eu/ The EBC Brewing Science Group
5192-732: The Brewers' Guild in 1929. The Guild and the Institute merged to form the Institute and Guild of Brewing (IGB) in 2001, which was later renamed as the Institute of Brewing and Distilling in 2005. The Brewer and Distiller International is a full colour monthly publication that is sent out to full IBD members. The Journal of the Institute of Brewing is a quarterly academic journal of peer-reviewed published research articles, with ISSN 0046-9750 and indexed in Scopus . This list
5310-646: The British Beer and Pub Association . The scientific output of the congress had, until 2007, always been summarised in the Congress Proceedings. Up to and including the 27th EBC congress (Cannes, 1999) the Proceedings appeared in printed form, afterwards as a CD. Due to the considerable work involved in compiling the Proceedings on the one hand, and the problem facing researchers that the Proceedings were not an acceptable peer-review journal, it
5428-441: The starch in the grain into sugars, typically maltose to create a malty liquid called wort . There are two main methods – infusion mashing, in which the grains are heated in one vessel; and decoction mashing, in which a proportion of the grains are boiled and then returned to the mash, raising the temperature. Mashing involves pauses at certain temperatures (notably 45–62–73 °C or 113–144–163 °F), and takes place in
5546-399: The yeast . This in turn creates a beer lower in body and higher in alcohol. A rest closer to the higher end of the range favours α-amylase enzymes, creating more higher-order sugars and dextrins which are less fermentable by the yeast, so a fuller-bodied beer with less alcohol is the result. Duration and pH variances also affect the sugar composition of the resulting wort. Lautering is
5664-413: The "grist" or "grain bill", and water, known as "liquor", and heating this mixture in a vessel called a "mash tun". Mashing is a form of steeping, and defines the act of brewing, such as with making tea, sake , and soy sauce . Technically, wine, cider and mead are not brewed but rather vinified , as there is no steeping process involving solids. Mashing allows the enzymes in the malt to break down
5782-820: The Association of Slovene Brewers, taking place in Ljubljana (14-18 May 2017); in 2019, the EBC congress teamed up with the Brewers Forum in Antwerp (2-5 June 2019). This was the first time that the EBC Congress had been held together with an events initiative by The Brewers of Europe, the Brewers Forum Due to the Corona restrictions in place on physical meetings, the EBC Congress earmarked for 2021
5900-729: The Barley and Malt Committee, and the Brewing Science Group. In 2009, the Barley and Malt Committee was disbanded and replaced by the European Raw Materials Network. Due to a shift in priorities, the ERMN was not pursued after 2016 on the basis of sharing areas of responsibilities with Euromalt ( Euromalt ). The Analysis Group's central function is the maintenance and updating of the Analytica-EBC,
6018-587: The Board and Council, had been done away with to make way for a transitional executive body designed to steer the organisation through the merger. The EBC Executive Committee was called into being under the chairmanship of the EBC President, Dr. Hilary Jones. After the first "post-merger" congress held in Hamburg in 2009 (32nd EBC congress), EBC formulated a governance structure that was better designed to suit
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#17327722426446136-533: The Brewers Forum, the other one a collaborative symposium hosted together with Hopsteiner and other sponsors, on the latest advances in hop science (venue Nürnberg and Spalt). No EBC Symposium could be arranged for 2020 due to the Corona pandemic; an invitation by the Italian brewers association Assobirra to host the meeting in Rome in 2023 is in planning. Most of the information used in the compilation of this article
6254-423: The EBC archives mention that "in view of postwar economical difficulties and monetary restrictions, the expenses - including registration fees - were borne by the host country". The 19th EBC congress (London, 1983) holds the record for the highest number of attendees: A total of 1607 delegates (including accompanying persons) attended. The 29th EBC congress (Dublin, 2003) was a milestone for EBC for two reasons: This
6372-425: The EBC congress is recognised globally as a significant meeting event for the world's brewing, malting and beer fermentation scientists and technologists, taking place every two years. The European Brewery Convention was founded in 1946 as a direct result of the critical situation concerning raw material supply (specifically malted barley and hops ) which had arisen due to World War II. The founding members included
6490-606: The Institute moved to its current location in Curlew Street, south of the River Thames. The institute can trace its roots back to 1886 when a group of ten scientists with interests in malting and brewing science formed The Laboratory Club, which later became the Institute of Brewing (IoB). In October 1906 a group of Yorkshire brewers established the Operative Brewers' Guild, which changed its name to
6608-432: The ability of lager yeast to metabolize melibiose , and the tendency to settle at the bottom of the fermenter (though ale yeasts can also become bottom settling by selection); though these technical differences are not considered by scientists to be influential in the character or flavour of the finished beer, brewers feel otherwise - sometimes cultivating their own yeast strains which may suit their brewing equipment or for
6726-437: The activity of brewer's yeast over less desirable microorganisms; and they aid in "head retention", the length of time that the foam on top of the beer (the beer head ) will last. The preservative in hops comes from the lupulin glands which contain soft resins with alpha and beta acids. Though much studied, the preservative nature of the soft resins is not yet fully understood, though it has been observed that unless stored at
6844-417: The air, it is possible that beer-like beverages were independently developed throughout the world soon after a tribe or culture had domesticated cereal. Chemical tests of ancient pottery jars reveal that beer was produced as far back as about 7,000 years ago in what is today Iran. This discovery reveals one of the earliest known uses of fermentation and is the earliest evidence of brewing to date. In Mesopotamia,
6962-529: The appointment being subject to the approval by the Board of The Brewers of Europe. The current EBC President, Benet Fité Luís , was confirmed by the Board as the new EBC President in November 2020. The vice-president of EBC, Dr. Sandra Stelma (van Nierop), is an internal appointment. Before the merger with The Brewers of Europe, EBC administered three technical committees, the Analysis Committee,
7080-599: The beer to be hazy. This rest is generally used only with undermodified (i.e. undermalted) malts which are decreasingly popular in Germany and the Czech Republic, or non-malted grains such as corn and rice, which are widely used in North American beers. A mash rest at 60 °C (140 °F) activates β- glucanase , which breaks down gummy β-glucans in the mash, making the sugars flow out more freely later in
7198-594: The beer, but it is noticeably clearer than unfiltered beer. Fine filtration removes almost all cloudiness. Sterile filtration removes almost all microorganisms. Institute of Brewing and Distilling The Institute of Brewing and Distilling ( IBD ) is an industry trade association for brewers and distillers , both in the United Kingdom and internationally. The IBD had its headquarters at Clarges Street in London London until 2014 at which time
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#17327722426447316-435: The boiling vessel for two main reasons: firstly because copper transfers heat quickly and evenly; secondly because the bubbles produced during boiling, which could act as an insulator against the heat, do not cling to the surface of copper, so the wort is heated in a consistent manner. The simplest boil kettles are direct-fired, with a burner underneath. These can produce a vigorous and favourable boil, but are also apt to scorch
7434-402: The bottle, remaining in solution and providing natural carbonation. Bottle-conditioned beers may be either filled unfiltered direct from the fermentation or conditioning tank, or filtered and then reseeded with yeast. Cask ale (or cask-conditioned beer) is unfiltered , unpasteurised beer that is conditioned by a secondary fermentation in a metal, plastic or wooden cask. It is dispensed from
7552-470: The brew kettle, larger breweries use a separate tank, and design will differ, with tank floors either flat, sloped, conical or with a cup in the centre. The principle in all is that by swirling the wort the centripetal force will push the trub into a cone at the centre of the bottom of the tank, where it can be easily removed. A hopback is a traditional additional chamber that acts as a sieve or filter by using whole hops to clear debris (or " trub ") from
7670-500: The brewer's craft was the only profession which derived social sanction and divine protection from female deities/goddesses, specifically: Ninkasi , who covered the production of beer, Siris , who was used in a metonymic way to refer to beer, and Siduri , who covered the enjoyment of beer. In pre-industrial times, and in developing countries, women are frequently the main brewers. As almost any cereal containing certain sugars can undergo spontaneous fermentation due to wild yeasts in
7788-437: The brewer's intention for the beer. The beer is usually transferred into a second container, so that it is no longer exposed to the dead yeast and other debris (also known as " trub ") that have settled to the bottom of the primary fermenter. This prevents the formation of unwanted flavours and harmful compounds such as acetaldehyde . Kräusening (pronounced KROY -zen-ing ) is a conditioning method in which fermenting wort
7906-434: The brewing process. Malting is the process where barley grain is made ready for brewing. Malting is broken down into three steps in order to help to release the starches in the barley. First, during steeping, the grain is added to a vat with water and allowed to soak for approximately 40 hours. During germination , the grain is spread out on the floor of the germination room for around 5 days. The final part of malting
8024-461: The cask by being either poured from a tap by gravity, or pumped up from a cellar via a beer engine (hand pump). Sometimes a cask breather is used to keep the beer fresh by allowing carbon dioxide to replace oxygen as the beer is drawn off the cask. Until 2018, the Campaign for Real Ale (CAMRA) defined real ale as beer "served without the use of extraneous carbon dioxide ", which would disallow
8142-582: The changed needs of EBC within the fold of a larger entity. Critical to the success of this was the initiative by the EBC President Christian von der Heide and the Secretary General of The Brewers of Europe, Pierre-Olivier Bergeron, to harmonise the respective associations for more effectiveness. Among the changes proposed, one of the most important was to offer a more representative platform not only to brewing companies, but allow
8260-403: The cooled wort goes into a fermentation tank. A type of yeast is selected and added, or "pitched", to the fermentation tank. When the yeast is added to the wort, the fermenting process begins, where the sugars turn into alcohol, carbon dioxide and other components. When the fermentation is complete the brewer may rack the beer into a new tank, called a conditioning tank. Conditioning of the beer
8378-591: The destination list. The EBC congress is organised with the help of an agency, the Professional Congress Organiser (PCO). The official host for the congress is not EBC (who may be interpreted as licensing the congress and thereby assuring its scientific and technical excellence) but the national brewing trade association in the respective country. For Hamburg (2009) this had been the Deutscher Brauerbund , for Glasgow (2011)
8496-403: The development of glass vessels for storing and drinking beer, along with the commercial success of pale lager , which - due to the lagering process in which haze and particles settle to the bottom of the tank and so the beer " drops bright " (clears) - has a natural bright appearance and shine. There are several forms of filters; they may be in the form of sheets or "candles", or they may be
8614-505: The female flower clusters or seed cones of the hop vine Humulus lupulus , which are used as a flavouring and preservative agent in nearly all beer made today. Hops had been used for medicinal and food flavouring purposes since Roman times; by the 7th century in Carolingian monasteries in what is now Germany, beer was being made with hops, though it isn't until the thirteenth century that widespread cultivation of hops for use in beer
8732-672: The first president of the organisation, Prof. Philippe Kreiss. The name European Brewery Convention was adopted at the first EBC congress held in 1947 in the Dutch seaside resort of Scheveningen ; in the interim, it was briefly known as the Centre Continental de Brasserie (Continental Brewery Centre). Its mission was largely focused on two areas of collaboration amongst brewers in Europe; namely, to strengthen their collective bargaining power in terms of securing adequate malting barley in both quantity and quality, as well as to encourage
8850-583: The first year of trialling to be at the end of 2013. In 2016, after EBC Internal Regulations' review, the Raw Materials Network was discontinued. Still, EBC Executive Team supports competent institutions in Europe to proceed the research on barley and other brewing cereals, as well as producing EBC Standard Malt via IFBM. At the first congress of the EBC which took place 1947 in Scheveningen, The Netherlands, there were only 188 delegates and
8968-404: The grains is rinsed off with hot water. The lauter tun is a tank with holes in the bottom small enough to hold back the large bits of grist and hulls (the ground or milled cereal). The bed of grist that settles on it is the actual filter. Some lauter tuns have provision for rotating rakes or knives to cut into the bed of grist to maintain good flow. The knives can be turned so they push the grain,
9086-519: The grains to extract additional sugars (a process known as sparging ). The wort is moved into a large tank known as a "copper" or kettle where it is boiled with hops and sometimes other ingredients such as herbs or sugars. This stage is where many chemical reactions take place, and where important decisions about the flavour, colour, and aroma of the beer are made. The boiling process serves to terminate enzymatic processes, precipitate proteins, isomerize hop resins , and concentrate and sterilize
9204-501: The hopped wort are separated out, usually in a vessel called a "whirlpool" or "settling tank". The whirlpool was devised by Henry Ranulph Hudston while working for the Molson Brewery in 1960 to utilise the so-called tea leaf paradox to force the denser solids known as "trub" (coagulated proteins, vegetable matter from hops) into a cone in the centre of the whirlpool tank. Whirlpool systems vary: smaller breweries tend to use
9322-419: The hops contact the hot wort. While a hopback has a similar filtering effect as a whirlpool, it operates differently: a whirlpool uses centrifugal forces, a hopback uses a layer of whole hops to act as a filter bed. Furthermore, while a whirlpool is useful only for the removal of pelleted hops (as flowers do not tend to separate as easily), in general hopbacks are used only for the removal of whole flower hops (as
9440-491: The leading brewing nations, which had seen their industry being ravaged by the war, to re-engage in scientific exchange leading to the increased implementation of modern brewing and fermentation techniques. In the late 1990, discussions between EBC and the Confédération des Brasseries du Marché Commun (C.B.M.C. - latterly to become The Brewers of Europe) were underway to investigate a merger of both associations. The aim
9558-449: The modern era; after the widespread application of brewing mycology it was discovered that the two separate collecting methods involved two different yeast species that favoured different temperature regimes, namely Saccharomyces cerevisiae in top-cropping at warmer temperatures and Saccharomyces pastorianus in bottom-cropping at cooler temperatures. As brewing methods changed in the 20th century, cylindro-conical fermenting vessels became
9676-401: The most common a plate-style. Water or glycol run in channels in the opposite direction of the wort, causing a rapid drop in temperature. It is very important to quickly cool the wort to a level where yeast can be added safely as yeast is unable to grow in very high temperatures, and will start to die in temperatures above 60 °C (140 °F). After the wort goes through the heat exchanger,
9794-501: The national brewing trade associations more of a say in the constitution and governance of EBC. Structured along analogous lines to The Brewers of Europe Executive Committee in order to achieve better alignment, the EBC Executive Team's members are from: The chairperson of the EBC Executive Team (formerly 'committee') is the EBC President. He or she is appointed by the EBC Executive Team (by consensus or majority vote) with
9912-462: The nineteenth century the brewing industry has been part of most western economies. The basic ingredients of beer are water and a fermentable starch source such as malted barley . Most beer is fermented with a brewer's yeast and flavoured with hops . Less widely used starch sources include millet , sorghum and cassava . Secondary sources ( adjuncts ), such as maize (corn), rice, or sugar, may also be used, sometimes to reduce cost, or to add
10030-520: The norm and the collection of yeast for both Saccharomyces species is done from the bottom of the fermenter. Thus the method of collection no longer implies a species association. There are a few remaining breweries who collect yeast in the top-cropping method, such as Samuel Smiths brewery in Yorkshire, Marstons in Staffordshire and several German hefeweizen producers. For both types, yeast
10148-533: The oldest evidence of beer is believed to be a 6,000-year-old Sumerian tablet depicting people drinking a beverage through reed straws from a communal bowl . A 3900-year-old Sumerian poem honouring Ninkasi, the patron goddess of brewing, contains the oldest surviving beer recipe, describing the production of beer from barley via bread. The invention of bread and beer has been argued to be responsible for humanity's ability to develop technology and build civilization. The earliest chemically confirmed barley beer to date
10266-445: The particles left by pellets tend to make it through the hopback). The hopback has mainly been substituted in modern breweries by the whirlpool. After the whirlpool, the wort must be brought down to fermentation temperatures 20–26 °C (68–79 °F) before yeast is added. In modern breweries this is achieved through a plate heat exchanger . A plate heat exchanger has sereral ridged plates, which form two separate paths. The wort
10384-455: The process, and greater knowledge of the results. Today, the brewing industry is a global business, consisting of several dominant multinational companies and many thousands of smaller producers ranging from brewpubs to regional breweries . More than 133 billion litres (35 billion gallons) are sold per year—producing total global revenues of $ 294.5 billion (£147.7 billion) in 2006. The basic ingredients of beer are water;
10502-483: The process. In the modern mashing process, commercial fungal based β-glucanase may be added as a supplement. Finally, a mash rest temperature of 65–71 °C (149–160 °F) is used to convert the starches in the malt to sugar, which is then usable by the yeast later in the brewing process. Doing the latter rest at the lower end of the range favours β-amylase enzymes, producing more low-order sugars like maltotriose , maltose , and glucose which are more fermentable by
10620-574: The procurement situation was therefore tantamount. In those days, it was only EBC who organised barley variety trials and testing. These days, the larger European countries run their own testing schemes—for instance, the NIAB in the UK, or the "Berliner Programm" of the Braugerstengemeinschaft in Germany. When the former Barley & Malt Committee was dissolved in 2009, the search was on for
10738-641: The role of yeast in fermentation was understood, fermentation involved wild or airborne yeasts, and a few styles such as lambics still use this method today. Emil Christian Hansen , a Danish biochemist employed by the Carlsberg Laboratory , developed pure yeast cultures which were introduced into the Carlsberg brewery in 1883, and pure yeast strains are now the main fermenting source used worldwide. Some brewers add one or more clarifying agents to beer, which typically precipitate (collect as
10856-585: The seaweed kappaphycus ; polyclar (a commercial brand of clarifier); and gelatin . If a beer is marked "suitable for Vegans", it was generally clarified either with seaweed or with artificial agents, although the "Fast Cask" method invented by Marston's in 2009 may provide another method. There are several steps in the brewing process, which may include malting, mashing, lautering, boiling , fermenting , conditioning , filtering , and packaging . The brewing equipment needed to make beer has grown more sophisticated over time, and now covers most aspects of
10974-406: The separation of the wort (the liquid containing the sugar extracted during mashing) from the grains. This is done either in a mash tun outfitted with a false bottom, in a lauter tun, or in a mash filter. Most separation processes have 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 which remains with
11092-511: The service of allied traders (industry suppliers) upon application; however, independent brewing consultants are excluded from membership. At present, the following European academic and research institutes are represented through key members in the Brewing Science Group: When the former Barley and Malt Committee was founded in the late 1940s most brewers were also still producing their own malt. A thorough understanding of
11210-462: The starches released during the malting stage into sugars that can be fermented. The milled grain is mixed with hot water in a large vessel known as a mash tun . In this vessel, the grain and water are mixed together to create a cereal mash. During the mash, naturally occurring enzymes present in the malt convert the starches (long chain carbohydrates) in the grain into smaller molecules or simple sugars (mono-, di-, and tri-saccharides). This "conversion"
11328-429: The steam created during the boil is passed over a coil through which unheated water flows. By adjusting the rate of flow, the output temperature of the water can be controlled. This is also often done using a plate heat exchanger. The water is then stored for later use in the next mash, in equipment cleaning, or wherever necessary. Another common method of energy recovery takes place during the wort cooling. When cold water
11446-421: The structure. Newer mash filters have bladders that can press the liquid out of the grains between spargings. The grain does not act like a filtration medium in a mash filter. After mashing, the beer wort is boiled with hops (and other flavourings if used) in a large tank known as a "copper" or brew kettle – though historically the mash vessel was used and is still in some small breweries. The boiling process
11564-474: The supply of pure cultured yeast to brewers across Europe. This yeast strain was originally classified as Saccharomyces carlsbergensis , a now defunct species name which has been superseded by the currently accepted taxonomic classification Saccharomyces pastorianus . Lambic beers are historically brewed in Brussels and the nearby Pajottenland region of Belgium without any yeast inoculation. The wort
11682-465: The technical programme of lectures and posters. These are usually displayed in the exhibition area in order to ensure a good mix of research and commercial activities. Apart from the key-note session on the Monday, most of the presentations are arranged in parallel sessions. The Thursday is reserved for technical tours: Breweries, malting plants and sometimes brewing engineering and construction firms are on
11800-545: The title of Secretary-General was abolished in favour of the EBC Executive Officer who manages the day-to-day tasks of EBC and is, at the same time, a full member of staff of The Brewers of Europe secretariat. The position is currently held by John M. Brauer . EBC maintains limited autonomy in budgetary matters whilst in most other respects has transformed itself into an integrated part of The Brewers of Europe aisbl . Early in 2007 both governing bodies of EBC,
11918-481: The unfermented (or "green") wort , as the whirlpool does, and also to increase hop aroma in the finished beer. It is a chamber between the brewing kettle and wort chiller. Hops are added to the chamber, the hot wort from the kettle is run through it, and then immediately cooled in the wort chiller before entering the fermentation chamber. Hopbacks utilizing a sealed chamber facilitate maximum retention of volatile hop aroma compounds that would normally be driven off when
12036-631: The use of a cask breather, a policy which was reversed in April 2018 to allow beer served with the use of cask breathers to meet its definition of real ale. Barrel-ageing ( US: Barrel aging) is the process of ageing beer in wooden barrels to achieve a variety of effects in the final product. Sour beers such as lambics are fully fermented in wood, while other beers are aged in barrels which were previously used for maturing wines or spirits . In 2016 "Craft Beer and Brewing" wrote: "Barrel-aged beers are so trendy that nearly every taphouse and beer store has
12154-400: The vessels make the risk of infection greater, but with proper cleaning procedures and careful protocol about who enters fermentation chambers, the risk can be well controlled. Fermentation tanks are typically made of stainless steel. If they are simple cylindrical tanks with beveled ends, they are arranged vertically, as opposed to conditioning tanks which are usually laid out horizontally. Only
12272-400: The wort is cooled and aerated – usually with sterile air – yeast is added to it, and it begins to ferment. It is during this stage that sugars won from the malt are converted into alcohol and carbon dioxide , and the product can be called beer for the first time. Most breweries today use cylindroconical vessels, or CCVs, which have a conical bottom and a cylindrical top. The cone's angle
12390-421: The wort where the flame touches the kettle, causing caramelisation and making cleanup difficult. Most breweries use a steam-fired kettle, which uses steam jackets in the kettle to boil the wort. Breweries usually have a boiling unit either inside or outside of the kettle, usually a tall, thin cylinder with vertical tubes, called a calandria, through which wort is pumped. At the end of the boil, solid particles in
12508-445: The wort. Hops add flavour, aroma and bitterness to the beer. At the end of the boil, the hopped wort settles to clarify in a vessel called a "whirlpool", where the more solid particles in the wort are separated out. After the whirlpool, the wort is drawn away from the compacted hop trub, and rapidly cooled via a heat exchanger to a temperature where yeast can be added. A variety of heat exchanger designs are used in breweries, with
12626-419: The yeast used by Brasserie Dupont for saison ferments even higher at 29 to 35 °C (84 to 95 °F). They generally form a foam on the surface of the fermenting beer, which is called barm , as during the fermentation process its hydrophobic surface causes the flocs to adhere to CO 2 and rise; because of this, they are often referred to as "top-cropping" or "top-fermenting" – though this distinction
12744-427: The yeast. The process of storing, or conditioning, or maturing, or aging a beer at a low temperature for a long period is called "lagering", and while it is associated with lagers, the process may also be done with ales, with the same result – that of cleaning up various chemicals, acids and compounds. During secondary fermentation, most of the remaining yeast will settle to the bottom of the second fermenter, yielding
12862-415: The yeasts classed as top-fermenting are generally used in warm fermentations, where they ferment quickly, and the yeasts classed as bottom-fermenting are used in cooler fermentations where they ferment more slowly. Yeast were termed top or bottom cropping, because the yeast was collected from the top or bottom of the fermenting wort to be reused for the next brew. This terminology is somewhat inappropriate in
12980-546: Was consumed in the period of three days (this is excluding the beer consumed on technical tours). Noteworthy for its length was the 15th EBC congress (Nice, 1975) which took place from 9–16 May (7 days). A list of venues and numbers of visitors of the congresses appears below. An EBC congress normally commences with a registration and reception event on usually the second, third or fourth Sunday in May in odd-numbered years. The three days spanning Monday until Wednesday are reserved for
13098-535: Was decided to eliminate these entirely, replacing them with the presentations on the congress website (or CD). However, alternative methods of capturing the learnings from a congress are currently under review. The 2015 EBC congress (the 35th EBC Congress ) took place from 24 to 28 May 2015 at the Alfândega Congress Centre , in Porto / Portugal. In 2017, the EBC congress was upon the invitation of
13216-599: Was discovered at Godin Tepe in the central Zagros Mountains of Iran, where fragments of a jug, at least 5,000 years old was found to be coated with beerstone , a by-product of the brewing process. Beer may have been known in Neolithic Europe as far back as 5,000 years ago, and was mainly brewed on a domestic scale. Ale produced before the Industrial Revolution continued to be made and sold on
13334-855: Was held in Copenhagen in September 2012 (see EBC symposium website ). Delegates expressed themselves positively in terms of structure, contents and organisation of this event. The 2014 EBC Symposium was held at the Ottakringer Brauerei Events Location in Vienna / Austria, from 7–9 September, on the topic of "Sensory and technology of beer mix beverages". The 2016 EBC Symposium was hosted by the national brewing association of Poland, in September 2016, in Wroclaw. In 2018, two EBC symposia were organised: One in conjunction with
13452-651: Was known as ale, while beer flavoured with hops was known as beer. Some beers today, such as Fraoch by the Scottish Heather Ales company and Cervoise Lancelot by the French Brasserie-Lancelot company, use plants other than hops for flavouring. Hops contain several characteristics that brewers desire in beer: they contribute a bitterness that balances the sweetness of the malt; they provide floral, citrus, and herbal aromas and flavours; they have an antibiotic effect that favours
13570-659: Was postponed until 2022. The host will be the Spanish Brewers Association and the venue will be Madrid (29 May until 2 June 2022, at the IFEMA). The 2022 Congress in Spain will mark the 75th anniversary of the EBC, as well as the centenary celebrations of the Cerverceros de España, the brewers association of Spain. More information is available via the concurrently organised Brewers Forum . An EBC Symposium
13688-665: Was sent from the Spaten brewery in Munich to the Carlsberg brewery in Copenhagen in 1845 who began brewing with it. In 1883 Emile Hansen completed a study on pure yeast culture isolation and the pure strain obtained from Spaten went into industrial production in 1884 as Carlsberg yeast No 1. Another specialized pure yeast production plant was installed at the Heineken Brewery in Rotterdam the following year and together they began
13806-413: Was the first time a trade-show had been organised as part of the congress, offering the supplier industry an exhibition platform embedded in a scientific brewing conference. It was also the first time that activities between EBC were synchronised with meetings of The Brewers of Europe. The record in delegates' beer consumption is held by the 25th EBC congress (Brussels, 1995): 7,9 litres per head per delegate
13924-660: Was to expand both organisations' mutual knowledge base and explore the synergies afforded by a largely shared membership, the national brewing trade associations operating in most European countries. The merger documents were signed in November 2006 and, following the retirement of the EBC Secretary General Marjolein van Wijngaarden at the end of 2007, the organisation moved from its former headquarters in Zoeterwoude, The Netherlands to Brussels, Belgium. Not being an independent organisation any longer,
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