Cold brew coffee: Difference between revisions
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#REDIRECT [[List_of_coffee_drinks#Cold_brew]] |
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[[File:Toddy coffee system.jpg|thumb|right|Cold brew coffee system in action]] |
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'''Cold brew''', or '''cold water extract''', refers to the process of steeping coffee grounds in room temperature or cold water for an extended period. |
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Cold brew coffee is not to be confused with [[iced coffee]], which generally refers to coffee that is brewed hot and then chilled by pouring over or adding ice, though iced coffee can refer to cold brew coffee served on ice. |
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==Process== |
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[[File:Oji Cold Brew System.jpg|thumb|right|Cold brew system]] |
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The cold-water-extract process requires [[Mill (grinding)|grinding]]: coarse-ground beans are soaked in water for a prolonged period of time, typically 12 hours or more in coffee franchises.{{citation needed|date=April 2016}} The water is normally kept at room temperature, but chilled water can also be used. The grounds must be filtered out of the water after they have been steeped using a paper [[coffee filter]], a fine metal sieve, a [[French press]] or felt. The result is a coffee concentrate that is often diluted with water or milk, and can be served hot, [[iced coffee|over ice]], or blended with ice and other ingredients such as chocolate. |
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''Slow-drip'' cold brew, also known as ''Kyoto-style'', or as ''Dutch coffee'' in East Asia,<ref>{{cite web |url=http://sprudge.com/dutch-coffee-batavias-slow-dripped-cooled-down-take-on-a-classic-82709.html |title=Dutch Coffee: Batavia's Slow-Dripped, Cooled Down Take On A Classic |date=August 13, 2015 |first=Karina |last=Hof |work=Sprudge}}</ref> refers to a process in which water is dripped through coffee grounds at room temperature over the course of many hours.<ref>http://tmagazine.blogs.nytimes.com/2010/07/29/ristretto-kyoto-to-stay/?_r=0#</ref> |
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[[Cold brew tea]] is a similar process using tea as opposed to coffee.<ref>{{cite conference |first1=A. |last1=Peters |title=Brewing Makes the Difference |conference=14th Colloquium of Association for Science and Information on Coffee |conferenceurl=http://asic-cafe.org |url=http://asic-cafe.org/en/system/files/14_011.pdf |archiveurl=http://www.webcitation.org/6Tqq0IDKy |accessdate=5 November 2014 |archivedate=5 November 2014 }}</ref> |
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===Purpose=== |
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Because the ground coffee does not come into contact with heated water, the process of extracting flavor from the beans produces a chemical profile different from conventional brewing methods.<ref>{{cite web|title=Coffee, without the heat|author=Jon Bonné|publisher=TODAY|date=August 20, 2004|access-date=Oct 7, 2015|url=http://www.today.com/id/5728227#.Vb8zifyweUk}}</ref> Coffee beans contain a number of constituent parts that are more soluble at high temperatures, such as caffeine, oils and fatty acids. Brewing at a lower temperature results in lower acidity and lower caffeine content.<ref>{{cite web|title=Why you should stop cold-brewing, and use the Japanese Iced Coffee Method.|author=Peter Giuliano|publisher=Pax Coffea.|url=http://petergiuliano.tumblr.com/post/22177089634/why-you-should-stop-cold-brewing-and-use-the|access-date=Nov 6, 2015}}</ref><ref>{{cite web|title=Does Cold Brew Coffee Have More Caffeine than Hot Coffee?|publisher=Coffee Chemistry|access-date=Nov 6, 2015|url=http://www.coffeechemistry.com/quality/brewing/does-cold-brew-coffee-have-more-caffeine-than-hot-coffee}}</ref> However, even though there is less caffeine extracted with the cold brew method, the higher coffee-to-water ratio may compensate for this difference in solubility, resulting in a brew with equal, if not more, caffeine.<ref>{{cite web |title=Does Cold Brew Coffee Have More Caffeine than Hot Coffee? |url=http://www.thekitchn.com/does-cold-brew-coffee-have-more-caffeine-than-hot-coffee-221222 |date=July 13, 2015 |work=The Kitchn}}</ref><ref>{{cite web |title=4 Things You Need to Know About Cold-Brewed Coffee |url=https://driftaway.coffee/coldbrew/ |date=May 2, 2015}}</ref> |
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==See also== |
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{{portal|Coffee}} |
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* [[Iced tea#Sun tea|Sun tea]] |
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*[[Cold brew tea]] |
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==References== |
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{{reflist}} |
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==External links== |
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{{commons category inline|cold brew}} |
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{{Coffee}} |
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{{DEFAULTSORT:Coffee Preparation}} |
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[[Category:Coffee drinks]] |
[[Category:Coffee drinks]] |
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[[Category:Coffee preparation]] |
[[Category:Coffee preparation]] |
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Revision as of 11:18, 3 November 2016
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