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9. Grinding Coffee
The objective of a proper grind is to get the most flavor in a cup of coffee. How coarse or fine the coffee is ground depends on the method by which the coffee is to be brewed. Generally, the finer the grind the more quickly the coffee should be prepared. That is why coffee ground for use in an espresso machine is much finer than coffee which will be brewed in a drip system.
8. Roasting the Coffee
A coffee bean is actually a seed. When dried, roasted and ground, it is used to brew coffee. But if the seed is not processed, it can be planted and will grow into a coffee tree.
Coffee seeds are generally planted in large beds in shaded nurseries. After sprouting, the seedlings are removed from the seed bed to be planted in individual pots in carefully formulated soils. They will be watered frequently and shaded from bright sunlight until they are hearty enough to be permanently planted. Planting often takes place during the wet season, so that the soil around the young trees remains moist while the roots become firmly established.
Roasting transforms green coffee into the aromatic brown beans that we purchase, either whole or already ground, in our favorite stores. Most roasting machines maintain a temperature of about 550 degrees Fahrenheit. The beans are kept moving throughout the entire process to keep them from burning and when they reach an internal temperature of about 400 degrees, they begin to turn brown and the caffeol, or oil, locked inside the beans begins to emerge.
7. Tasting the Coffee
Before you brew your coffee, take a moment to look carefully at the beans. Smell their aroma. Think of the many processes that these beans have gone through since the day they were hand-picked and sorted in their origin country. Consider the long way they have traveled to your kitchen. Prepare your coffee thoughtfully and enjoy it with pleasure. Many people have been instrumental in bringing it to your cup!
At every stage of its production, coffee is repeatedly tested for quality and taste. This process is referred to as 'cupping' and usually takes place in a room specifically designed to facilitate the process. First, the taster -- usually called the cupper -- carefully evaluates the beans for their overall visual quality. The beans are then roasted in a small laboratory roaster, immediately ground and infused in boiling water, the temperature of which is carefully controlled. The cupper "noses" the brew to experience its aroma, an integral step in the evaluation of the coffee's quality. After letting the coffee rest for several minutes, the cupper "breaks the crust" by pushing aside the grounds at the top of the cup. Again the coffee is nosed before the tasting begins.
Depending on the variety, it will take approximately 3 or 4 years for the newly planted coffee trees to begin to bear fruit. The fruit, called the coffee cherry, turns a bright, deep red when it is ripe and ready to be harvested. In most countries, the coffee crop is picked by hand, a labor-intensive and difficult process, though in places like Brazil, where the landscape is relatively flat and the coffee fields immense, the process has been mechanized. Whether picked by hand or by machine, all coffee is harvested in one of two ways: Strip Picked, Selectively picked
6. Exporting the Beans
The milled beans, now referred to as 'green coffee,' are ready to be loaded onto ships for transport to the importing country. Green coffee is shipped in either jute or sisal bags which are loaded into shipping containers, or it is bulk shipped inside plastic-lined containers. Approximately seven million tons of green coffee is produced worldwide each year.
Once the coffee has been picked, processing must begin as quickly as possible to prevent spoilage. Depending on location and local resources, coffee is processed in one of two ways. The dry method or the wet method.
Before it is exported, parchment coffee is processed in the following manner:
Hulling
Machines are used to remove the parchment layer (endocarp) from wet processed coffee. Hulling dry processed coffee refers to removing the entire dried husk -- the exocarp, mesocarp & endocarp -- of the dried cherries.
Polishing
This is an optional process in which any silver skin that remains on the beans after hulling is removed in a polishing machine. While polished beans are considered superior to unpolished ones, in reality there is little difference between the two.
Grading & Sorting
Before being exported, the coffee beans will be even more precisely sorted by size and weight. They will also be closely evaluated for color flaws or other imperfections.
If the beans have been processed by the wet method, the pulped and fermented beans must now be dried to approximately 11 percent moisture to properly prepare them for storage. These beans, still encased inside the parchment envelope (the endocarp), can be sun dried by spreading them on drying tables or floors, where they are turned regularly, or they can be machine dried in large tumblers. Once dried, these beans, referred to as 'parchment coffee,' are warehoused in sisal or jute bags until they are readied for export.