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Cold brew coffee

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Cold brew coffee, also called cold water extraction or cold pressing, is the process of steeping coffee grounds in water at cool temperatures for an extended period. Coarse-ground beans are soaked in water for about 12 to 24 hours.[1][2]

5 flavours of High Brew-branded cans in a tub of ice
A display of cold brew coffees in a supermarket

The water is normally kept at room temperature, but chilled water can be used. After the grounds have been steeped, they are filtered out of the water using a paper coffee filter, or a fine metal sieve (e.g. in a French press), or felt. The result is a coffee concentrate that is diluted with water or milk, and is sometimes served hot, but often served chilled, over ice, or blended with ice and other ingredients such as chocolate.[3]

History

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It was the Dutch who introduced cold brew coffee to Japan, where it has been a traditional method of coffee brewing for centuries.[4] Slow-drip cold brew, which Blue Bottle Coffee has deemed Kyoto-style,[5] or as Dutch coffee in East Asia (after the name of coffee essences brought to Asia by the Dutch),[6] refers to a process in which water is dripped through coffee grounds at room temperature over the course of many hours.[7]

Taste

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Because the ground coffee beans in cold-brewed coffee never come into contact with heated water, the process of leaching flavor from the beans produces a chemical profile different from conventional brewing methods.[8][9] Coffee beans contain a number of parts that are more soluble at higher temperatures, such as caffeine, oils and fatty acids. However, brewing at a lower temperature for 24 hours results in higher caffeine content when brewed in equal volume compared to 6 minutes at 98 °C (208 °F).[10] The pH of cold and hot brew coffee is similar but cold brew coffee has a lower titratable acid concentration.[11] Both pH and titratable acidity influence taste.[12]

Nitro cold brew

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Nitro cold brew

Nitro cold brew is a variation of cold brew coffee that uses the addition of nitrogen gas to create a smooth texture, delivering the nitrogenated coffee from a nitrogen beer tap system.[13] It was introduced in the early 2010s.[14]

Production

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Production of nitro cold brew coffee begins with the making of cold brew coffee.[15] Once the grounds are adequately steeped, the coffee is poured into a room-temperature bottle or keg.[16] As the cold brew is poured into a cup, it is charged with nitrogen to give it a rich, creamy head of foam, similar to draft beer. (Though most beers and soft drinks are charged with carbon dioxide, nitrogen is occasionally used in darker stouts, resulting in a smoother finish.) Nitro cold brew is typically served chilled but without ice, which would damage the foamy top.[16]

History

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Nitro cold brew was first offered at third wave coffee shops in the early 2010s, but the exact origin is disputed. The process is said by Men's Journal to have originated in 2013 at craft coffee houses Cuvee Coffee in Austin, Texas, and Stumptown in Portland, Oregon.[17] However, Esquire gives credit to the draft coffee at The Queens Kickshaw in New York in 2011 as a predecessor.[18] Cuvee Coffee first offered nitro cold brew, on tap, at the Slow Food Quiz Bowl in Austin, Texas, on August 14, 2012.[citation needed][19] The Ball Corporation issued a press release citing Cuvee as the first company to can cold brew in their widget cans, and BevNet awarded Cuvee the Best Packaging Innovation, calling them "the first cold brew brand to market a nitrogenated offering."[20] Stumptown and Cuvee began offering canned beverages with a nitrogen-filled capsule to pressurize the can by 2015.[21][22] Starbucks introduced the beverage at 500 stores in the summer of 2016,[23][24] preceded in the Los Angeles market by The Coffee Bean & Tea Leaf.[25] By 2020, Starbucks offered the beverage at more than half of its locations across the United States, making it a staple menu item.[26] Nitro cold brew is available from wholesalers in some markets in kegs. RISE Brewing Co. says it can fill up to 1,500 kegs a day of nitro cold brew coffee.[27]

See also

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References

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  1. ^ "Cold Brew Coffee Brewing Guide - How To Brew Coffee - Blue Bottle Coffee". bluebottlecoffee.com. Retrieved 2018-11-14.
  2. ^ "The Beginner's Guide to Immersion Cold Brew Coffee". handground.com. Retrieved 2018-11-14.
  3. ^ "Cold Brew Coffee". Coffee-Brewing-Methods.com. 13 September 2020.
  4. ^ Callow, Chloë (2017). Cold Brew Coffee: Techniques, Recipes & Cocktails for Coffee's Hottest Trend. Octopus Books. ISBN 978-1-78472-368-2.[page needed]
  5. ^ White, Merry (2012). Coffee Life in Japan. University of California Press. p. 90. ISBN 9780520271159.
  6. ^ Hof, Karina (13 August 2015). "Dutch Coffee: Batavia's Slow-Dripped, Cooled Down Take On A [sic] Classic". Sprudge.
  7. ^ Strand, Oliver (29 July 2010). "Ristretto | Kyoto to Stay". T Magazine.
  8. ^ Peters, A. (2003). Brewing makes the difference. 14th International Scientific Colloquium on Coffee. Association for Science and Information on Coffee. Archived from the original on 20 December 2013. Retrieved 10 August 2013.
  9. ^ Bonné, Jon (20 August 2004). "Coffee, without the heat". TODAY. Archived from the original on 7 January 2016. Retrieved 7 October 2015.
  10. ^ Fuller, Megan; Rao, Niny Z. (21 December 2017). "The Effect of Time, Roasting Temperature, and Grind Size on Caffeine and Chlorogenic Acid Concentrations in Cold Brew Coffee". Scientific Reports. 7 (1): 17979. Bibcode:2017NatSR...717979F. doi:10.1038/s41598-017-18247-4. PMC 5740146. PMID 29269877.
  11. ^ Rao, Niny Z.; Fuller, Megan (30 October 2018). "Acidity and Antioxidant Activity of Cold Brew Coffee". Scientific Reports. 8 (1): 16030. Bibcode:2018NatSR...816030R. doi:10.1038/s41598-018-34392-w. PMC 6207714. PMID 30375458.
  12. ^ Amerine, M. A.; Roessler, E. B.; Ough, C. S. (1 January 1965). "Acids and the Acid Taste. I. The Effect of pH and Titratable Acidity". American Journal of Enology and Viticulture. 16 (1): 29–37. doi:10.5344/ajev.1965.16.1.29. S2CID 85917941.
  13. ^ "Carbon Dioxide (CO₂) Monitoring in Cellars". Analox Sensor Technology. 2018. Archived from the original on 28 April 2019.
  14. ^ "Nitrogenated Coffee Market Size, Share | Global Industry Report, 2025". www.grandviewresearch.com. Retrieved 2020-11-06.
  15. ^ "6 Common Mistakes You Are Making With Cold Brewed Coffee". HuffPost. 2016-06-23. Retrieved 2020-10-23.
  16. ^ a b Mohrman, Eric (2019-10-10). "Read this before you order Starbucks' Nitro Cold Brew". Mashed.com. Retrieved 2020-10-23.
  17. ^ Barnes, Shane, "Nitro Cold Brew is the Best Thing to Happen to Coffee Since Ice", Men's Journal, retrieved 2020-09-12
  18. ^ Krasny, Jill (2015-06-09), "This Is the Best Iced Coffee You Will Drink All Summer", Esquire, retrieved 2020-09-12
  19. ^ "What Is Nitro Coffee – All About Nitro Cold Brew". espressocoffeetime.com/.
  20. ^ "Cuvée Coffee Wins Best Packaging Innovation at BevNET's Best of 2015". 14 January 2016.
  21. ^ Rosen, Ali (2015-09-22). "Nitro coffee is the next big thing to happen to your morning brew". Fox News.
  22. ^ Goldberg, Elyssa (2015-04-28), "Nitro, Our New Favorite Iced Coffee, Is Served on Tap and Tastes Like Beer", Bon Appetit, Conde Nast, retrieved 2020-09-12
  23. ^ Saelinger, Tracy (2016-06-27), "Starbucks' nitro coffee: Here's what you need to know before you order", Today, retrieved 2020-09-12
  24. ^ Fox News (2016-05-31). "Starbucks introduces nitro cold brew at 500 locations this summer". Fox News. Retrieved 2020-09-12.
  25. ^ Scherer, Josh (27 July 2016), "Coffee Bean Strikes Critical Blow Against Starbucks! Victory Imminent!", Los Angeles, retrieved 2020-09-12
  26. ^ Nelson, Dustin. "Starbucks Is Finally Bringing One of Its Best Drinks Nationwide". Thrillist. Retrieved 2020-11-06.
  27. ^ McGinnes, Meagan (2017-06-14). "Rise Brewing Wins New Beverage Showdown 13". Bevnet. Retrieved 2017-07-20.

Further reading

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