A coolship (Anglicized version of the Dutch/Flemish koelschip) is a type of brewing vessel traditionally used in the production of beer. It is a broad, open-top, flat vessel in which wort cools. [1] The high surface to volume ratio allows for more efficient cooling. Contemporary usage includes any open fermenter used in the production of beer, even when using modern mechanical cooling techniques. Traditionally, coolships were constructed of wood, but later were lined with iron or copper for better thermal conductivity. [2]
The word "coolship" was trademarked by Allagash Brewing Company in the United States. The company later decided to terminate the trademark, in the interests of maintaining good relations with others in the craft beer industry. [3]
Coolships are still used in traditional lambic brewing, where the wort is cooled and airborne yeasts and bacteria present in the brewery are allowed to inoculate the beer naturally, in order to create a spontaneous fermentation. [2]
Beer is one of the oldest alcoholic drinks in the world, the most widely consumed, and the third most popular drink after water and tea. It is produced by the brewing and fermentation of starches from cereal grains—most commonly malted barley, although wheat, maize (corn), rice, and oats are also used. The fermentation of the starch sugars in the wort produces ethanol and carbonation in the beer. Most modern beer is brewed with hops, which add bitterness and other flavours and act as a natural preservative and stabilising agent. Other flavouring agents, such as gruit, herbs, or fruits, may be included or used instead of hops. In commercial brewing, natural carbonation is often replaced with forced carbonation.
Brewing is the production of beer by steeping a starch source in water and fermenting the resulting sweet liquid with yeast. It may be done in a brewery by a commercial brewer, at home by a homebrewer, or communally. Brewing has taken place since around the 6th millennium BC, and archaeological evidence suggests that emerging civilizations, including ancient Egypt, China, and Mesopotamia, brewed beer. Since the nineteenth century the brewing industry has been part of most western economies.
Hops are the flowers of the hop plant Humulus lupulus, a member of the Cannabaceae family of flowering plants. They are used primarily as a bittering, flavouring, and stability agent in beer, to which, in addition to bitterness, they impart floral, fruity, or citrus flavours and aromas. Hops are also used for various purposes in other beverages and herbal medicine. The hops plants have separate female and male plants, and only female plants are used for commercial production. The hop plant is a vigorous, climbing, herbaceous perennial, usually trained to grow up strings in a field called a hopfield, hop garden, or hop yard when grown commercially. Many different varieties of hops are grown by farmers around the world, with different types used for particular styles of beer.
Low-alcohol beer is beer with little or no alcohol content that aims to reproduce the taste of beer while eliminating or reducing the inebriating effect, carbohydrates, and calories of regular alcoholic brews. Low-alcohol beers can come in different beer styles such as lagers, stouts, and ales. Low-alcohol beer is also known as light beer, non-alcoholic beer, small beer, small ale, or near-beer.
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; however home distillation is generally more tightly regulated.
Lambic is a type of beer brewed in the Pajottenland region of Belgium southwest of Brussels and in Brussels itself since the 13th century. Types of lambic beers include gueuze, kriek lambic, and framboise. Lambic differs from most other beers in that it is fermented through exposure to wild yeasts and bacteria native to the Zenne valley, as opposed to exposure to carefully cultivated strains of brewer's yeast. This process gives the beer its distinctive flavour: dry, vinous, and cidery, often with a tart aftertaste.
Craft beer is a beer that has been made by craft breweries, which typically produce smaller amounts of beer, than larger "macro" breweries, and are often independently owned. Such breweries are generally perceived and marketed as emphasising enthusiasm, new flavours, and varied brewing techniques.
Big Rock Brewery is a Canadian public company and the largest brewery that is based in Calgary, Alberta, Canada. Additional brewing operations are located in Vancouver, British Columbia; Etobicoke, Ontario; and Liberty Village in Toronto, Ontario. Big Rock distributes a variety of beers and ciders throughout Canada.
A beer garden is an outdoor area in which beer and food are served, typically at shared tables shaded by trees.
In brewing and distilling, mashing is the process of combining a mix of ground grains – typically malted barley with supplementary grains such as corn, sorghum, rye, or wheat – known as the "grain bill" with water and then heating the mixture. Mashing allows the enzymes in the malt to break down the starch in the grain into sugars, typically maltose to create a malty liquid called wort.
Steam beer is made by fermenting lager yeast at a warmer than normal temperature.
Spaten-Franziskaner-Bräu GmbH is a brewery in Munich, Bavaria, Germany. It produces Spaten and Franziskaner beers.
Allagash Brewing Company is a brewery in Portland, Maine. The brewery specializes in Belgian style beers.
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.
Russian River Brewing Company is a brewery and brewpub in downtown Santa Rosa, California, with a second location in Windsor. The company is known for strong India pale ales and sour beers.
Millet beer, also known as Bantu beer, malwa, pombe "Tchouk" or opaque beer [बाजरा बियर in Hindi], is an alcoholic beverage made from malted millet that is common throughout Africa. Its production process varies across regions and in the southern parts of Africa is more commonly known as umqombothi. Millet beer varies in taste and alcoholic content between ethnic groups. It is served in calabash gourds.
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.
Beer is produced through steeping a sugar source in water and then fermenting with yeast. Brewing has taken place since around the 6th millennium BC, and archeological evidence suggests that this technique was used in ancient Egypt. Descriptions of various beer recipes can be found in Sumerian writings, some of the oldest known writing of any sort. Brewing is done in a brewery by a brewer, and the brewing industry is part of most western economies. In 19th century Britain, technological discoveries and improvements such as Burtonisation and the Burton Union system significantly changed beer brewing.
Sour beer is beer which has an intentionally acidic, tart, or sour taste. Sour beer styles include Belgian lambics and Flanders red ale and German Gose and Berliner Weisse.
A tower brewery is a distinct form of brewery, identified by its external buildings being arranged in the form of a vertical tower.