All You Need to Know About Coffee
Some Interesting Facts about Coffee
- Coffee is one the second actively traded product after oil, with around 20 million people working in the coffee industry.
- There are around 70 coffee producing countries around the world with Brazil being the largest, which produces around 28 percent of the total world output.
- Contrary to what some people believe, coffee does not grow as a bean but as a red cherry carrying two beans.
- There are over 60 different varieties of coffee but only two varieties are used for trading; Arabica and Robusta.
- Caffeinated coffee has a beneficial effect on alertness and is known to boost performance.
- Black Coffee does not contain any calories,(as long as milk and sugar is not added).
- A good coffee tree can produce up to 1 kg of raw coffee per year but needs temperatures between 17º and 23º as well as good rainfall and good soil conditions.
- Coffee trees only grow in tropical and sub-tropical regions.
- When the coffee beans go through roasting process, the sugars in the beans start to caramelise.
- It takes 5 years for a coffee tree to reach maturity.
- The first coffee house opened in Venice in 1683.
The Lifecycle of the Coffee Bean
Before the Coffee bean is ground down, peculated and poured into our coffee cup it goes through a series of processes spanning over a period of months.
The Coffee tree starts its life as a seed and after 4 to 8 weeks it develops into a seedling. At this stage the seedling needs be handled with care making sure the soil remains moist and does not attract too much sunlight. After about 9 to 18 months the coffee tree will grow to about 12 inches tall. It is a further 3 years before the tree bears fruit, (known as cherries), and a further 6 years before it is fully mature and producing fruit fully. At this stage the trees are ready for harvesting. This is done manually by the locals and usually all hands are on deck.
A good coffee picker can pick the equivalent of 50 to 60 pounds of coffee eans in a day. The average life in a day. span for a coffee tree is about 20 to 25 years, yielding around 2000 beans per year.
Once the cherries have been picked they are ready for sorting. This can be done in different ways depending on the outcome of the required coffee taste. The first way is for 'Aged coffee' only, and involves keeping the green bean in a well ventilated warehouse for 1-7 years. This gives the beans a less acidic taste and a syrupy richness.
Dry Processing involves drying the cherries in the sun, then removing the pulp, parchment and dried skin. This can take up to two weeks and the beans must be continuously raked to prevent mildew.
Wet Processing this method involves putting the cherries in water; any ones that float are removed as defective. The cherries are then pressed by a machine which only allows the seed and some pulp to pass through the holes. The remaining pulp is removed leaving the beans which are then left to dry leaving about 10 - 12 percent moisture content.
Mahines are used to remove the parchment layer from the wet processed coffee beans. The dry process involves removing the entire dried husk of the dried cherries
A polishing machine is used to remove any silver skin that is left on after the hulling process
Cleaning, Sorting and Grading
Before the beans are exported tthey are sorted again by sizes and weight, and then they are checked again for colour flaws or other imperfections. Any beans with the slightest imperfection will be removed.
Exporting the Coffee
The beans are now referred to as Green beans and are ready for exporting. Their is approximately seven million tons of green coffee produced worldwide each year.
Tasting the Coffee
At every stage of coffee production the coffee is repeatedly tested for quality and taste. This process is referred to as cupping and takes place in a room specifically designed for this process. An experienced cupper is can taste hundreds of samples of coffee a day and still taste the subtle differences between them.
Roasting the Coffee
This is normally done in the importing country because freshly roasted beans must reach the consumer as quickly as possible. The process of roasting the coffee beans involves roasting them at 550 degrees Fahrenheit. The beans are kept moving throughout the entire process to stop them from burning. When they reach a temperature of about 400 degrees they begin to turn brown and the caffeol or oil that is locked inside the bean starts to emerge. This process is is what produces the flavour and aroma of the coffee. Once the beans are removed from the roaster they are immediately cooled with by air or water.
Now its time to enjoy your Perfect Brew!!
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