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Coffee pots and carafes-many to choose from
All around the world in the morning coffee pots and carafes help us start our day. Coffee drinking is standard practice in almost every culture. From very strong coffee, to very weak with lots of milk it is enjoyed in many kitchens. No matter what...

Creating Inexpensive Gifts With Coffee Mugs
During the holidays you may become overwhelmed by the list of people you need gifts for. When trying to find gifts it can be difficult to get cute presents at inexpensive prices. The more people on your list however, the more important cheap...

Gourmet Coffee Beans
Gourmet Coffee Beans You can be a coffee lover without knowing much about coffee beans, but learning a little bit about the different types of coffee can help you get the perfect cup every time. There are many types of gourmet coffee beans. The way...

How Starbucks Chooses, Roasts And Blends Their Coffee
Starbucks® Coffee knows the perfect cup of coffee starts with only the best beans. Finding and purchasing the best green beans in the world is the first step that differentiates them from the rest of the coffee industry. They are well-known for...

Mr. Coffee Versus Bunn-o-Matic - The Coffee Maker Battle Heats Up
For coffee lovers, there are few things more appealing than being met in the early a.m. hours by a perfectly brewed pot of coffee. That first cup sets the mood for your entire day, doesn't it? If it's brewed up right, you'll feel that extra zing in...

 
Caffeine in Coffee

Caffeine is only one of several hundred chemicals found in coffee. However it is the most notorious because of the many physiological affects it has on the human body. Caffeine naturally occurs in many other plants apart from the coffee bush, such as tea and cocoa plants.

There is a long established link between coffee and mental stimulation, which gives a cup of coffee a certain appeal. In fact it could be argued that coffee drinking has helped change the course of history. In 1773, it was in a Boston coffee house where citizens planned the Boston Tea Party; and in 1789, it was from Café Foy that Camille Desmoulins led the angry mob that later brought down the Bastille.

Whether caffeine is actually good for us is a long and much argued debate. Caffeine is commonly used by endurance athletes to permit them to train for longer and aid their recovery afterwards. Scientific studies have also linked it to the prevention of Parkinson's and Alzheimer's disease. However, too much caffeine can lead to insomnia, diuresis, gastro-intestinal disturbance, arrhythmia, psychomotor agitation and osteoporosis.

The amount of caffeine in an average cup of coffee (8oz/230ml) varies from between 80 to 150 milligrams. This variation is due to a number of factors. The main difference is caused by from where, and from which variety of plant, the coffee beans are harvested. As caffeine has natural anti-fungal properties, coffee plants grown in environments less favourable to the growth of fungal spores contain less caffeine. At high altitudes, the temperature and humidity is such that spores germinate too slowly to have too much of an effect on a coffee plant. So, generally speaking, the higher the altitude at which a bean is grown, the lower its caffeine content. Also Arabica beans typically have half the amount of caffeine when compared to Robusta beans.

The roasting process alters


the amount of caffeine in a coffee bean. A common misconception is that, the darker the roast level, the lower the caffeine content. However, this is not really the case as caffeine changes very little during the roasting process. Caffeine has a very stable structure with a boiling point above 315°C, well above roasting temperatures, which rarely exceed 245°C. Nevertheless a small amount of caffeine is lost due to sublimation, where a substance changes directly from a solid state to a gaseous one. This occurs in caffeine at approximately 175°C.

The roasting process dramatically alters a coffee bean. A bean loses weight, mostly due to water evaporation, causing the level of caffeine by weight to increase. However, as beans nearly double in size when roasting, the level of caffeine by volume decreases.

The final factor affecting the caffeine content of your cup of coffee is the brewing method. Different brewing methods require different amounts of coffee, ground to different sizes. Many people believe that an espresso contains less caffeine then a regular cup of coffee. But as you require more coffee to make an espresso then a regular cup, and the coffee is ground finer, increasing the surface area, this means that the caffeine content is roughly the same. However the effects will be felt more quickly with an espresso, and wear off faster, as caffeine is absorbed more rapidly when taken in concentrated doses.

About the author:

James Grierson is the owner of Galla Coffee: http://www.gallacoffee.co.uk - Uk online retailer of designer coffee accessories. Through the Coffee Knowledge section of his website he aims to help people understand more about coffee and give them tips on how to make great tasting coffee in their home.

Check out http://www.gallacoffee.co.uk/acatalog/Coffee_Knowledge.html for more articles or if you have a question send it to: coffee

 

Starbucks Homepage
Starbucks Coffee Company is the leading retailer, roaster and brand of specialty coffee in the world. The Company's other brands enhance the Starbucks ...
www.starbucks.com
 
Coffee - Wikipedia, the free encyclopedia
Coffee is one of the most widely consumed beverages in the world. ... Coffee aficionados may even distinguish auctioned coffees by lot number. ...
en.wikipedia.org
 
Peet's Coffee & Tea
Coffee, tea and brewing equipment, information and store locator.
www.peets.com
 
Coffee Review :: The World's Leading Coffee Buying Guide
Coffee and coffee-related reviews done by Kenneth Davids and others.
www.coffeereview.com
 
Coffee @ nationalgeographic.com
The history of coffee, descriptions of different varieties, map of coffee-producing countries and a discussion forum.
www.nationalgeographic.com
 
Trojan Room Coffee Machine
The official site. Includes the final image of the machine being switched off, a non-technical biography, and an audio copy of a 1994 radio report.
www.cl.cam.ac.uk
 
Espresso and Coffee Information from Coffee Universe
Linking the entire specialty coffee and espresso industry from coffee beans, coffee roasting to espresso machines.
coffeeuniverse.com
 
CoffeeGeek - News, Reviews, Opinion and Community for Coffee and ...
Offers reviews of coffee appliances, news, and articles.
www.coffeegeek.com
 
Coffee Break Arcade - Free Games
Play the best FREE games on the web. Select online games from 6 categories including Sports, Shooting, Racing, Classic, Casino and Cool.
www.coffeebreakarcade.com
 
Too Much Coffee Man - Home
Online strips, merchandise, and multimedia. [Graphics intensive]
www.tmcm.com
 
International Coffee Organization - News From The Executive Director
London-based intergovernmental body of coffee exporting and importing countries. Offers current industry news and legislative alerts; ...
www.ico.org
 
Caribou Coffee — Gourmet Coffee Shops and Online Specialty Coffee ...
Caribou Coffee shops and online store feature gourmet coffee and gifts.
www.cariboucoffee.com
 
Fair Trade Coffee
Fair Trade for coffee farmers means community development, health, education, ... Updated Action Pack for Fair Trade Coffee and Chocolate Campaigns ...
www.globalexchange.org
 
Gevalia.com - Gourmet Coffee & Tea Collections
Selections of fine coffees, flavorful teas, gifts and inspirations offered via direct automatic delivery or catalog order.
www.gevalia.com
 
Dunkin' Donuts Coffee | Buy Coffee Beans Online
Coffee sold by the pound, regular delivery programs, gifts and accessories.
www.dunkindonuts.com
 
Over The Coffee
Top Ten Coffee Producing Nations Brazil Colombia Indonesia Vietnam Mexico Ethiopia India Guatemala Cote d'Ivoire Uganda.
www.cappuccino.com
 
INeedCoffee - Monthly Caffeination Information
This coffee brewer guide is meant to assist buyer to choose the ideal single cup ... I found coffee paradise. The best coffee city is Auckland, New Zealand. ...
www.ineedcoffee.com
 
Coffee Forums Coffee Discussion about Espresso, Coffee Beans and ...
Offers discussion boards for enthusiasts to talk about topics such as beans, espresso, machines, and cafes.
www.coffeeforums.com
 
Green Mountain Coffee Roasters: Organic, Fair Trade and Signature ...
Gourmet coffees and specialty coffee accessories and gifts. Shop online for Fair Trade and Organic coffee, single-cup coffee, decaf and flavored coffee, ...
www.greenmountaincoffee.com
 
Equal Exchange: Fairly Traded Coffee, Tea & Chocolate
Dedicated to fair trade with small-scale coffee farmers in the developing world.
www.equalexchange.com
 
 

 

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