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Glossary
Noble Hops
The term "noble hops" traditionally refers to varieties of hops which are low in bitterness and high in aroma. They are the European cultivars or races Hallertau, Tettnanger, Spalt, and Saaz.[33] They are not bred as "modern" hop varieties but they are wild hops found and named for a specific region or city in which they were first found or by the farmer which found them or first propagated them. They contain high amounts of the hop oil humulene and low amounts of alpha acids cohumulone and adhumulone, as well as lower amounts of the harsher-tasting beta acids lupulone, colupulone, and adlupulone.[citation needed]
Their low relative bitterness but strong aroma are often distinguishing characteristics of European-style lager beer, such as Pilsener, Dunkel, and Oktoberfest/Märzen. In beer, they are considered aroma hops (as opposed to bittering hops); see Pilsner Urquell as a classic example of the Bohemian Pilsener style, which showcases noble hops.
As with grapes, the location where hops are grown affects the hops' characteristics. Much as Dortmunder beer may within the EU be labelled "Dortmunder" only if it has been brewed in Dortmund, noble hops may officially be considered "noble" only if they were grown in the areas for which the hop varieties (races) were named.
English noble varieties are Fuggle, East Kent Goldings and Goldings. They are characterized through analysis as having an alpha:beta ratio of 1:1, low alpha-acid levels (2–5%) with a low cohumulone content, low myrcene in the hop oil, high humulene in the oil, a ratio of humulene:caryophyllene above three, and poor storability resulting in them being more prone to oxidation. In reality, this means they have a relatively consistent bittering potential as they age, due to beta-acid oxidation, and a flavour that improves as they age during periods of poor storage.[34]
Hallertau or Hallertauer–The original German lager hop; named after Hallertau or Holledau region in central Bavaria. Due to susceptibility to crop disease, it was largely replaced by Hersbrucker in the 1970s and 1980s. (Alpha acid 3.5–5.5% / beta acid 3–4%)
Žatec–Noble hop used extensively in Bohemia to flavor pale Czech lagers such as Pilsner Urquell. Soft aroma and bitterness. (Alpha acid 3–4.5% /Beta acid 3–4.5%)
Spalt–Traditional German noble hop from the Spalter region south of Nuremberg. With a delicate, spicy aroma. (Alpha acid 4–5% / beta acid 4–5%)
Tettnang–Comes from Tettnang, a small town in southern Baden-Württemberg in Germany. The region produces significant quantities of hops, and ships them to breweries throughout the world. Noble German dual-use hop used in European pale lagers, sometimes with Hallertau. Soft bitterness. (Alpha acid 3.5–5.5% / beta acid 3.5–5.5%)
Alphasäure
Wegen ihres hohen Bitterwertes wichtigster Inhaltsstoff des Hopfens.
Bohemian Pilsener
Bohemian is the original name of the lands which eventually became the Czech Republic. Bohemian Pilsner, which has been popularised by Matilda Bay Brewing Company with their naming of a beer which is frequently mis-understood to be a style rather than a beer name by drinkers. Crisp, complex and well-rounded yet refreshing.
B-Brite
Active oxygenated cleaner. Cleans without the use of chlorine or sulfites. For washing bottles and equipment: vessels, air-locks, tanks, hydrometers, utensils, bottles, hoses. Works equally as well on glass, plastics, stainless-steel, aluminum. Effective in removing beerstone and other dried bottle mineral deposits.
Batch Sparging
The full volume of sparge water is mixed into the mash. The grain bed is allowed to settle, and then the wort is drained off.
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