|
Filtered Beer
Filtered beer refers to any ale, lager, or fermentation, fermented malt beverage in which the sediment left over from the brewing process has been removed. Ancient techniques included the use of straw mats, cloth, or straws, and frequently left some sediment in the drink. Modern filtration, introduced at the end of the 19th century, uses a mechanical process that can remove all sediment, including yeast, as well as carbon dioxide#Biological processes, natural carbonation, from the beer. Such beer is known as bright beer and requires force carbonation before bottling or serving from a keg. In the United Kingdom, a beer which has been filtered in the brewery is known as "brewery-conditioned", as opposed to unfiltered bottle conditioning, bottle-conditioned and cask ales. Filtration Filtered beer is mechanically filtered by flowing it through layers of filter material; the two main techniques are surface filtration and cake filtration. Filters range from rough filters that remove mu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bitburger Glass (cropped)
Bitburger Brewery (Bitburger Brauerei Th. Simon GmbH) is a large Beer in Germany, German brewery in Bitburg, Rhineland-Palatinate. Founded in 1817 by Johann Wallenborn, its Pilsner is the Beer in Germany#Breweries, third best-selling in Germany, and the nation's top-selling draught beer. History Johann Peter Wallenborn (1784–1839) founded the brewery in Bitburg in 1817 at the age of 33. His father owned a brewery in Kyllburg. Three years after Wallenborn's death in 1839, Ludwig Bertrand Simon (1813–1869) married Wallenborn's daughter Elisabeth (1819–1891) and became owner of the brewery, naming it Simonbräu. Their son, Theobald Simon (1847–1924), took over the brewery in 1876 at the age of 29. Product range Bitburger is a 4.8% Alcohol by volume, abv Pilsner with annual sales of . It is a popular beer throughout western Germany, and is favored in many areas of North Rhine Westphalia even over Altbier, Alt beer or Kölsch (beer), Kölsch, which are popular in Düsse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bottle-conditioned
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, China, 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 th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 domestically for thousands of years before its commercial production although its legality has varied according to local regulation. Homebrewing is closely related to the hobby of ''home distillation'', the production of alcoholic spirits for personal consumption, but home distillation is generally more tightly regulated. History Beer has been brewed domestically throughout its 7,000-year history, beginning in the Neolithic period in Mesopotamia (modern Iraq), Egypt and China. It seems to have first developed as thick beers; during this time meads, fruit wines and rice wines were also developed. Women brewers dominated alcohol production on every occupied continent until commercialization and industrialization of brewing occurred. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PVPP
Polyvinylpolypyrrolidone (polyvinyl polypyrrolidone, PVPP, crospovidone, crospolividone, or E1202) is a highly cross-linked modification of polyvinylpyrrolidone (PVP). The cross-linked form of PVP is used as a disintegrant (see also excipients) in pharmaceutical tablets. PVPP is a highly cross-linked version of PVP, making it insoluble in water, though it still absorbs water and swells very rapidly generating a swelling force. This property makes it useful as a disintegrant in tablets. PVPP can be used as a drug, taken as a tablet or suspension to absorb compounds (so-called endotoxins) that cause diarrhea. (''Cf.'' bone char, charcoal.) It is also used as a fining to extract impurities (via agglomeration followed by filtration). It is used in winemaking. Using the same principle it is used to remove polyphenols in beer production and thus clear beers with stable foam are produced. One such commercial product is called Polyclar. PVPP forms bonds similar to peptidic bonds in pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Finings
Finings are substances that are usually added at or near the completion of the processing of making wine, beer, and various nonalcoholic juice beverages. They are used to remove compounds, either to improve clarity or adjust flavor or aroma. The removed compounds may be sulfides, proteins, polyphenols, benzenoids, or copper ions. Unless they form a stable sediment in the final container, the spent finings are usually discarded from the beverage along with the target compounds that they capture. Substances used as finings include egg whites, blood, milk, isinglass, and Irish moss. These are still used by some producers, but more modern substances have also been introduced and are more widely used, including bentonite, gelatin, casein, carrageenan, alginate, diatomaceous earth, pectinase, pectolyase, PVPP, kieselsol ( colloidal silica), copper sulfate, dried albumen (egg whites), hydrated yeast, and activated carbon. Actions Finings’ actions may be broadly categorized ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Garrett Oliver
Garrett Oliver (born July 29, 1962) is an American brewer and beer author from New York City. Since 1994, he has worked as the brewmaster at the Brooklyn Brewery. Early life Oliver grew up in Hollis, Queens to a father who enjoyed hunting and cooking. Oliver studied filmmaking at Boston University, and as a student organized concerts for bands such as R.E.M., The Ramones, The English Beat, and The Gun Club. After graduation, he spent a year stage-managing bands at the University of London. He then traveled in Europe, sampling beers in countries such as Belgium, West Germany, and Czechoslovakia.Acitelli, p. 228 After returning to the United States in 1983, he began homebrewing, working for HBO and a New York law firm. Brewing career In 1989, Oliver became an apprentice brewer at the Manhattan Brewing Company. In 1993, he was appointed brewmaster of the company, which closed and reopened twice in the early 90s. In 1994, he left Manhattan to become brewmaster at the Brooklyn Brewe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perlite
Perlite is an amorphous volcanic glass that has a relatively high water content, typically formed by the Hydrate, hydration of obsidian. It occurs naturally and has the unusual property of greatly expanding when heated sufficiently. It is an industrial minerals, industrial mineral, suitable "as ceramic flux to lower the sintering temperature", and a commercial product useful for its low density after processing. Properties Perlite softens when it reaches temperatures of . Water trapped in the structure of the material vaporises and escapes, and this causes the expansion of the material to 7–16 times its original volume. The expanded material is a brilliant white, due to the reflectivity of the trapped bubbles. Unexpanded ("raw") perlite has a bulk density around 1100 kg/m3 (1.1 g/cm3), while typical expanded perlite has a bulk density of about 30–150 kg/m3 (0.03–0.150 g/cm3). Typical analysis *70–75% silicon dioxide: SiO2 *12–15% aluminium oxide: Al2O3 *3–4 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diatomaceous Earth
Diatomaceous earth ( ), also known as diatomite ( ), celite, or kieselguhr, is a naturally occurring, soft, siliceous rock, siliceous sedimentary rock that can be crumbled into a fine white to off-white powder. It has a particle size ranging from more than 3 millimeter, mm to less than 1 micrometre, μm, but typically 10 to 200 μm. Depending on the granularity, this powder can have an abrasive feel, similar to pumice powder, and has a low density as a result of its high porosity. The typical chemical composition of oven-dried diatomaceous earth is 80–90% silica, with 2–4% aluminum oxide, alumina (attributed mostly to clay minerals), and 0.5–2% iron oxide. Diatomaceous earth consists of the fossilized remains of diatoms, a type of hard-shelled microalgae, that have accumulated over millions of years. It is used as a filtration aid, mild abrasive in products including metal polishes and toothpaste, mechanical insecticide, absorption (chemistry), absorbent for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Micrometre
The micrometre (English in the Commonwealth of Nations, Commonwealth English as used by the International Bureau of Weights and Measures; SI symbol: μm) or micrometer (American English), also commonly known by the non-SI term micron, is a unit of length in the International System of Units (SI) equalling (SI standard prefix "micro-" = ); that is, one millionth of a metre (or one thousandth of a millimetre, , or about ). The nearest smaller common SI Unit, SI unit is the nanometre, equivalent to one thousandth of a micrometre, one millionth of a millimetre or one billionth of a metre (). The micrometre is a common unit of measurement for wavelengths of infrared radiation as well as sizes of biological cell (biology), cells and bacteria, and for grading wool by the diameter of the fibres. The width of a single human hair ranges from approximately 20 to . Examples Between 1 μm and 10 μm: * 1–10 μm – length of a typical bacterium * 3–8 μm – width of str ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cask-conditioned
Real ale is the name coined by the Campaign for Real Ale (CAMRA) for ale that is "brewed from traditional ingredients, matured by secondary fermentation in the container from which it is dispensed, and served without the use of extraneous carbon dioxide". Cask and bottle-conditioned beers Cask and bottle-conditioned beers are referred to as real ale by CAMRA, as both fit its description of beers served from a container in which they have undergone secondary fermentation. Distinction from filtered beer The fundamental distinction between real and other ales is that real ale is unfiltered and unpasteurized, leaving its yeast alive and slowly fermentating in bottle or keg. This secondary fermentation continues until the ale is served, allowing it to retain its natural carbonation. In contrast, natural carbonation is removed from standard beer and ale during filtering, requiring them to be artificially re-carbonated (and often very 'gassy'). Real ales are served "bottle con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tyndall Effect
The Tyndall effect is light scattering by particles in a colloid such as a very fine suspension (a sol). Also known as Tyndall scattering, it is similar to Rayleigh scattering, in that the intensity of the scattered light is inversely proportional to the fourth power of the wavelength, so blue light is scattered much more strongly than red light. An example in everyday life is the blue colour sometimes seen in the smoke emitted by motorcycles, in particular two-stroke machines where the burnt engine oil provides these particles. The same effect can also be observed with tobacco smoke whose fine particles also preferentially scatter blue light. Under the Tyndall effect, the longer wavelengths are transmitted more, while the shorter wavelengths are more diffusely reflected via scattering. The Tyndall effect is seen when light-scattering particulate matter is dispersed in an otherwise light-transmitting medium, where the diameter of an individual particle is in the range o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lager
Lager (; ) is a Type of beer, style of beer brewed and Brewing#Conditioning, conditioned at low temperature. Lagers can be Pale lager, pale, Amber lager, amber, or Dark lager, dark. Pale lager is the most widely consumed and commercially available style of beer. The term "''lager''" comes from the German word for "storage", as the beer was stored before drinking, traditionally in the same cool caves in which it was fermented. As well as maturation in Refrigeration, cold storage, most lagers are distinguished by the use of ''Saccharomyces pastorianus'', a "bottom-fermenting" yeast that ferments at relatively cold temperatures. Etymology Until the 19th century, the German language, German word ''Lagerbier'' (:de:Lagerbier, de) referred to all types of top and bottom fermenting yeast, bottom-fermented, cool-conditioned beer in normal strengths. In Germany today, it mainly refers to beers from southern Germany, either "''Helles''" (pale) or "''Dunkel#Munich Dunkel, Dunkles''" (da ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
