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Lautering
Lautering () is the beer brewing process that separates the mash into clear liquid wort and residual grain. Lautering usually consists of three steps: mashout, recirculation, and sparging. Mashout Mashout is the term for raising the temperature of the mash to . This stops the enzymatic conversion of starches to fermentable sugars, and makes the mash and wort more fluid. Mashout is considered especially necessary if there is less than 3 liters of water per kilogram of grain (3 pints of water per pound of grain), or if the grain is more than 25% wheat or oats. The mashout step can be done by using external heat, or by adding hot water. Recirculation Recirculation consists of drawing off wort from the bottom of the mash, and adding it to the top. Lauter tuns typically have slotted bottoms to assist in the filtration process. The mash itself functions much as a sand filter to capture mash debris and proteins. This step is monitored by use of a turbidimeter to measure solids in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brewing
Brewing 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 and Mesopotamia, brewed beer. Since 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 a feature, such as adding wheat to aid in retaining the foamy head of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wort
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. Production The first step in wort production is to obtain malt, which is made from dried, sprouted cereal grains, including barley. The malt is run through a mill, cracking the husk and exposing the starch inside. The milled grain is then mashed by mixing it with hot water, and then steeped, a process that enables enzymes to convert the starch in the malt into sugars which dissolve in the water. Sometimes the mash is heated at set intervals to alter the enzyme activity. The temperature of the mixture is usually increased to 78 °C (172 °F) for mashout. Lautering is the next step, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 beer has taken place since at least 2500 BC; in ancient Mesopotamia, brewers derived social sanction and divine protection from the goddess Ninkasi. 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. 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 Beer may have been known in N ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brasserie Ratz - 20140926 - Cuve à Mélanger
In France, Flanders, and the Francophone world, a brasserie () is a type of French restaurant with a relaxed setting, which serves single dishes and other meals. The word ''brasserie'' is also French for "brewery" and, by extension, "the brewing business". A brasserie can be expected to have professional service, printed menus, and, traditionally, white linen—unlike a bistro which may have none of these. Typically, a brasserie is open Wednesday to Sunday and serves the same menu all day. A classic example of a brasserie dish is steak frites. Etymology The term ''brasserie'' is French for "brewery", from Middle French ''brasser'' "to brew", from Old French ''bracier'', from Vulgar Latin ''braciare'', of Celtic origin. Its first usage in English was in 1864. The origin of the word probably stems from the fact that beer was brewed on the premises rather than brought in: thus an inn would brew its own beer as well as supply food and invariably accommodation too. In 1901 ''Cha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tannin
Tannins (or tannoids) are a class of astringent, polyphenolic biomolecules that bind to and precipitate proteins and various other organic compounds including amino acids and alkaloids. The term ''tannin'' (from Anglo-Norman ''tanner'', from Medieval Latin ''tannāre'', from ''tannum'', oak bark) refers to the use of oak and other bark in tanning animal hides into leather. By extension, the term ''tannin'' is widely applied to any large polyphenolic compound containing sufficient hydroxyls and other suitable groups (such as carboxyls) to form strong complexes with various macromolecules. The tannin compounds are widely distributed in many species of plants, where they play a role in protection from predation (acting as pesticides) and might help in regulating plant growth. The astringency from the tannins is what causes the dry and puckery feeling in the mouth following the consumption of unripened fruit, red wine or tea. Likewise, the destruction or modification of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brewpub
Craft beer is a beer that has been made by craft breweries. They produce smaller amounts of beer, typically less than large breweries, and are often independently owned. Such breweries are generally perceived and marketed as having an emphasis on enthusiasm, new flavours, and varied brewing techniques. The microbrewery movement began in both the United States and United Kingdom in the 1970s, although traditional artisanal brewing existed in Europe for centuries and subsequently spread to other countries. As the movement grew, and some breweries expanded their production and distribution, the more encompassing concept of craft brewing emerged. A brewpub is a pub that brews its own beer for sale on the premises. Producer definitions Microbrewery Although the term "microbrewery" was originally used in relation to the size of breweries, it gradually came to reflect an alternative attitude and approach to brewing flexibility, adaptability, experimentation and customer service. The t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wedge Wire
A wedge is a triangular shaped tool, and is a portable inclined plane, and one of the six simple machines. It can be used to separate two objects or portions of an object, lift up an object, or hold an object in place. It functions by converting a force applied to its blunt end into forces perpendicular ( normal) to its inclined surfaces. The mechanical advantage of a wedge is given by the ratio of the length of its slope to its width..''McGraw-Hill Concise Encyclopedia of Science & Technology'', Third Ed., Sybil P. Parker, ed., McGraw-Hill, Inc., 1992, p. 2041. Although a short wedge with a wide angle may do a job faster, it requires more force than a long wedge with a narrow angle. The force is applied on a flat, broad surface. This energy is transported to the pointy, sharp end of the wedge, hence the force is transported. The wedge simply transports energy in the form of friction and collects it to the pointy end, consequently breaking the item. History Wedges have ex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
German Beer
Beer is a major part of German culture. German beer is brewed according to the '' Reinheitsgebot'', which permits only water, hops, and malt as ingredients; and stipulates that beers not exclusively using barley-malt, such as wheat beer, must be top-fermented. In 2020, Germany ranked third in Europe in terms of per-capita beer consumption, behind the Czech Republic and Austria. Styles Pale lagers *Exporta pale lager brewed around Dortmund that is fuller, maltier and less hoppy than Pilsner. 12–12.5° Plato, 5–5.5% ABV. Germany's most popular style in the 1950s and 1960s, it is now becoming increasingly rare. * Hellesa malty pale lager from Bavaria of 11–12° Plato, 4.5–5% ABV. * Kölschpale, light bodied, top fermented, beer which, when brewed in Germany, can only legally be brewed in the Cologne region. 11–12° Plato, 4.5–5% ABV. * Maibocka pale, strong lager brewed in the spring. 16–17° Plato, 6.5–7% ABV. * Märzenmedium body, malty lagers that come in pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Low-alcohol Beer
Low-alcohol beer is beer with little or no alcohol content and aims to reproduce the taste of beer while eliminating (or at least reducing) the inebriating effects of standard alcoholic brews. Most low-alcohol beers are lagers, but there are some low-alcohol ales. Low-alcohol beer is also known as light beer, non-alcoholic beer, small beer, small ale, or near-beer. History Low-alcoholic brews such as small beer date back at least to medieval Europe, where they served as a less risky alternative to water (which often was polluted by feces and parasites) and were less expensive than the full strength brews used at festivals. More recently, the temperance movements and the need to avoid alcohol while driving, operating machinery, taking certain medications, etc. led to the development of non-intoxicating beers. In the United States, according to John Naleszkiewicz, non-alcoholic brews were promoted during Prohibition. In 1917, President Wilson proposed limiting the alcohol conten ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
English Beer
Beer has been brewed in England for thousands of years. As a beer brewing country, it is known for top fermented cask beer (also called real ale) which finishes maturing in the cellar of the pub rather than at the brewery and is served with only natural carbonation. English beer styles include bitter, mild, brown ale and old ale. Stout, porter and India pale ale were also originally brewed in London. Lager-style beer has increased considerably in popularity since the mid-20th century. Other modern developments include consolidation of large brewers into multinational corporations; growth of beer consumerism; expansion of microbreweries and increased interest in bottle conditioned beers. History Romano-Celtic Britain Brewing in what is now England was probably well established when the Romans arrived in 54 BC, and certainly continued under them. In the 1980s, archaeologists found the evidence that Rome's soldiers in Britain sustained themselves on Celtic ale. A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nephelometer
A nephelometer or aerosol photometer is an instrument for measuring the concentration of suspended particulates in a liquid or gas colloid. A nephelometer measures suspended particulates by employing a light beam (source beam) and a light detector set to one side (often 90°) of the source beam. Particle density is then a function of the light reflected into the detector from the particles. To some extent, how much light reflects for a given density of particles is dependent upon properties of the particles such as their shape, color, and reflectivity. Nephelometers are calibrated to a known particulate, then use environmental factors (k-factors) to compensate lighter or darker colored dusts accordingly. K-factor is determined by the user by running the nephelometer next to an air sampling pump and comparing results. There are a wide variety of research-grade nephelometers on the market as well as open source varieties. Nephelometer uses The main uses of nephelometers rel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
