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Story of Coffee
The story of how coffee growing and drinking spread around the world is one of the greatest and most romantic in history. It starts in the Horn of Africa, in Ethiopia, where the coffee tree probably originated in the province of Kaffa. There are various fanciful but unlikely stories surrounding the discovery of the properties of roasted coffee beans. One story has it that an Ethiopian goatherd was amazed at the lively behavior of his goats after chewing red coffee berries. What we know with more certainty is that the succulent outer cherry flesh was eaten by slaves taken from present day Sudan into Yemen and Arabia, through the great port of its day, Mocha, now synonymous with coffee. Coffee was certainly being cultivated in Yemen by the 15th century and probably much earlier than that.
Mocha was also the main port for the one sea route to Mecca, and was the busiest place in the world at the time. But the Arabs had a strict policy not to export any fertile beans, so that coffee could not be cultivated anywhere else. The coffee bean is the seed of the coffee tree, but when stripped of its outer layers it becomes infertile. The race to make off with some live coffee trees or beans was eventually won by the Dutch in 1616, who brought some back to Holland where they were grown in greenhouses.
Initially, the authority in Yemen actively encouraged coffee drinking as it was considered preferable to the extreme side effects of Kat, a shrub whose buds and leaves were chewed as a stimulant. The first coffeehouses were opened in Mecca and were called 'kaveh kanes'. They quickly spread throughout the Arab world and became successful places where chess was played, gossip was exchanged, and singing, dancing and music were enjoyed. They were luxuriously decorated and each had an individual character. Nothing quite like the coffeehouse had existed before: a place where society and business could be conducted in comfortable surroundings and where anyone could go, for the price of coffee.
The Arabian coffeehouses soon became centers of political activity and were suppressed. Coffee and coffeehouses were subsequently banned several times over the next few decades, but they kept reappearing. Eventually a solution was found when coffeehouses and coffee were taxed.
Coffee comes to Americas
The first reference to coffee being drunk in North America is from 1668 and, soon after, coffee houses were established in New York, Philadelphia, Boston and other towns. The Boston Tea Party Of 1773 was planned in a coffee house, the Green Dragon. Both the New York Stock Exchange and the Bank of New York started in coffeehouses, in what is today the financial district known as Wall Street.
It was in the 1720s that coffee first came to be cultivated in the Americas, through what is perhaps the most fascinating and romantic story in the history of coffee.
Gabriel Mathieu de Clieu was a French naval officer serving in Martinique who in 1720, went to Paris on leave. With assistance and no little personal charm he acquired a coffee tree which he took with him on the ship back. The plant was kept in a glass case on deck to keep it warm and prevent damage from salt water. The journey was eventful, or at least
Mr. Mathieu de Clieu's journal of the voyage was. Pirates from Tunis threatened the ship, there was a violent storm and the plant had to be tied down. Our hero faced an enemy on board who was jealous and tried to sabotage the plant. There was a violent struggle in which a branch was torn off, but the plant survived this horror.
Then the ship was becalmed and drinking water was rationed.
De Clieu had his priorities right and gave most of his allowance of precious water to the coffee plant. It survived, as did he.
Finally, the ship arrived in Martinique and the coffee tree was re-planted at Preebear, where it was surrounded by a thorn hedge and watched over by slaves. It grew, and multiplied, and by 1726 the first harvest was ready. It is recorded that by 1777, there were between 18 and 19 million coffee trees on Martinique, and the model for a new cash crop that could be grown in the New World was in place.
But it was the Dutch who first started the spread of the coffee plant in Central and South America, where today it reigns supreme as the main continental cash crop. Coffee first arrived in the Dutch colony of Surinam in 1718, to be followed by plantations in French Guyana and the first of many in Brazil at Para. In 1730 the British introduced coffee to Jamaica, where today the most famous and expensive coffee in the world is grown in the Blue Mountains. By 1825, South and Central America were on track towards their coffee destiny. That date is also important as it was when coffee was first planted in Hawaii which produces the only US coffee, and one of the finest.
Decaff You Say?
Decaffeinated coffee is available as a choice for those consumers who wish to enjoy the taste and aroma of coffee without experiencing the mild stimulant effects provided by the caffeine.
Cup Quality of Decaffeinated Coffee
The cup quality of decaffeinated coffee is fully in line with that of regular coffee. Indeed, all the many different coffee varieties and origins retain their specific flavour properties.
The Decaffeination Processes
The decaffeination processes are performed on green coffee beans in industrial plants.
These four processing methods all share the basic stages of;
• Swelling the green coffee beans with water or steam in order to make the caffeine available for extraction
• Extracting the caffeine from the beans
• Steam stripping to remove all solvent residues from the beans (when applied)
/ regenerating adsorbents (when applied)
• Drying the decaffeinated coffee beans back to their normal moisture content
• Under carefully controlled process conditions, such as temperature, pressure and time, the caffeine extraction step is based on physical phase transport mechanisms. Due to the difference in concentration, the caffeine is diffused out of the cell structure into solvent surrounding the bean until the concentration of caffeine is the same inside and outside the beans.
• Water method; When green coffee is immersed in water the caffeine content is dissolved and removed, but along with this much of the coffee’s aromatic character can be lost. To overcome this drawback, the liquid is saturated with the water-soluble components of the coffee. The caffeine is subsequently removed from the solution using activated carbon or other adsorbents, which retain the caffeine, and the extract deprived of the caffeine can then be recycled.
• Ethyl - Acetate method: Ethyl - Acetate (EA) occurs in several natural products and contributes to the characteristic aroma of many fruit. EA is also found in varying concentrations in foodstuffs including green and roasted coffee. In the decaffeination process the combination of water and ethyl-acetate is used. In the extracting vessel the EA is circulated around the water soaked beans for extracting the caffeine. Then the mixture of water, ethyl-acetate and caffeine is drained from the extracting vessel. The extraction step is repeated several times, until the residual caffeine content is at or below the legal maximum level of 0,1%.
• Supercritical Carbon Dioxide and Liquid Carbon Dioxide method: CO2 is a readily available substance of great purity, naturally available in the air we breathe and in the sparkling water we drink. Under certain conditions it allows for a selective caffeine extraction and leaves most of the other coffee bean constituents unaltered. The use of carbon dioxide in its supercritical state (between its liquid and gaseous state) needs very high pressure – up to 250 atmospheres. This method requires large-scale production in order to be economically viable.
Also, liquid CO2 can be used for caffeine extraction with lower pressure and lower temperatures, wherefore a longer time is necessary to achieve the extraction.
• Methylene Chloride (i.e. Dichloromethane-DCM) method: DCM extracts the caffeine selectively and has a low boiling point. In the extracting vessel dichloromethane is circulated around the water soaked beans for extracting the caffeine. Then the mixture of DCM and caffeine is drained from the extracting vessel. The extraction step is repeated several times, until the residual caffeine content
• Is at or below the legal maximum level of 0,1%. The process followed guarantees that possible solvent residues remain below the limits fixed by the European legislation.
Information provided by the ICO (International Coffee Organization)
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Roasting Coffee
Green coffee beans are heated to between 180ºC and 240ºC for 8 to 15 minutes, depending on the degree of roast required. The longer the coffee is roasted the darker it becomes. During the roasting process moisture is lost and the bean "pops" audibly rather like popcorn. A chemical reaction takes place: starches are converted into sugar, proteins are broken down and the whole cellular structure of the bean is altered. The heating process precipitates the release of coffee oil, or what is called "caffeol", which is the essence of coffee.
Coffee Nut slow roasts their green coffee bean 3 times longer than the standard coffee roasting. This make for the best coffee in the world—you have to try this coffee and you to will become a Coffee Nut.
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Coffee Today
For North Americans, the world's largest consumers, Seattle is the new spiritual home of coffee. The wettest major city in the USA gave birth in the 1970s to a café or 'Latte' culture which swept the USA and has dramatically improved the general quality of the coffee Americans drink. Today, any public place in the USA will have one or more coffee carts, serving a variety of coffees, drinks and snacks.
This new found 'coffee culture' has started to spread to the rest of the world. To those countries with great coffee traditions of their own, such as Italy, Germany, and Scandinavia, added new converts to the pleasures of good coffee. Today it is possible to find good coffee in every major city of the world, from London to Sydney to Tokyo; tomorrow the world will drink more and more importantly, better coffee.
Coffee Nut Tips
“French Press Coffee”
1 full tablespoon of ground coffee, for every 5ounces of water.
“American Coffee”
1 full tablespoon of ground coffee for every 1 cup of water.
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Coffee Nut Tips
“French Press Coffee”
1 full tablespoon of ground coffee, for every 5ounces of water.
“American Coffee”
1 full tablespoon of ground coffee for every 1 cup of water.
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