COFFEE IN INDONESIA
This
assignment prepared by Nur Fathin Nadhia Bt. Ahmad Saiyuti and Nurul Nadzirah
Bt. Roslizan from PHM1114A1. We choose coffee made in Indonesia for our
assignment culture because of the uniqueness and the delicious taste that comes
from the coffee itself.
Among the numerous luxuries of the table, coffee may be considered as
one of the most valuable. It excites cheerfulness without intoxication and the
pleasing flow of spirits which it occasions is never followed by sadness,
languor or debility. Coffee has become one of the five highest traded
commodities in the world. Most of the countries that produces coffee are
located close to the equator. Because of its geographical location, Indonesia’s
climate is highly suited to the growing and production of coffee. Currently Indonesia
is the 3rd largest producer of coffee in the world. I have gone to
interview an uncle who has originally brought tradition of coffee from
Indonesia. The uncle was a little bit told about the background of the coffee.
COFFEE PLANTS
Coffee Arabica, known as Arabica coffee, accounts for 75-80% of the world’s production. Coffea canephora, known as Robusta coffee, is more robust than the Arabica plants, but produces an inferior tasting beverage with higher caffeine content. The coffee plant can grow to heights of 10 meters, if not pruned, nut normally the trees are pruned to a reasonable height for easy harvesting. Coffee trees flower twice a year. In Java from late July through to September. The flowers grow in brunches that hang from the tree. Only about 25% of the flowers will grow into coffee cherries. The Arabica species is self-pollinating, whereas the Robusta species depends on cross pollination. After pollination the fruit remains almost dormant for 6-8 weeks. After this time the cherry starts it rapid growth stage where it goes from the size of a pin head to the final cherry size within a 15 week period.
COFFEE PROCESSING
Once the cherries have reached a level of ripeness where the outer skin turns red, the picking begins. Bigger estates often do strip picks using machinery whereas the smaller plantations will hand pick the coffee cherries. Hand picking is of course the preferred method as only the choice cherries picked and the pest infected beans and debris can all sorted out. Beans at this newly picked stage can only last two days before they need to be further processed. This is the processing method most commonly used for Toraja coffee.
The drying process can take several weeks.
Over this time the beans are raked and turned as often as needed to ensure a
universal drying effect is achieved. Once the outer area of the bean begins to
fall off, the coffee is ready to have the pulp removed. It is normally dried
until the moisture content of the bean is approximately 11%. The mulching is
done by machinery-although some of these mulching machines are still hand
driven. The finsl product is a green bean, about 1/3 the size of the original
cherry. The dry method produces coffee that is heavy in body, sweet, smooth and
complex. Drying coffee is the wet processing system. Wet processing means the
bean can begin the final preparation stage immediately after being picked.
Instead of drying under the sun the cherries are processed through a water
system. This process results in a coffee that is cleaner, brighter, and
fruiter. The pulp of the coffee cherries is removed to release the two coffee
beans inside. The beans then sit in water for 24-48 hours to ferment. This is
the heart of wet processing-when the fine, acidy flavor of great coffee is
produced.
The fermenting process softens
the outer skin which makes it easy to remove. The system works well although
there are often times when the sugar in the beans can ferment, causing the
flavor of the beans to be affected. Most large coffee estates in Java use this
system as it speeds up processing and generally makes selection of the final
green bean much easier. The quality of green bean from wet processing is
generally higher.
After fermentation, the remaining pulp is
washed off and the beans spread out to dry. The coffee can also be dried in a
mechanical dryer, powered by a wood, gas or solar power. As in the dry method
the beans need to be dried until the moisture level reaches aproximately 11%.
The coffee is then referred to as parchment coffee and is ready to be
warehoused in sisal or jute bags until readied for hulling.
Machines are used to hull the parchment
layer (endocarp) from the wet processed coffee. Hulling dry processed coffee
refers to removing the entire dried husk -- the exocarp, mesocarp and endocarp
-- of the dried cherries. Green coffee can last for years if it is stored in
the correct conditions. It is vital that it is not exposed to high humidity as
this will cause molding. It can also absorb flavor from other things stored
around it so to avoid tainting the taste care must be taken in choosing the
warehouse location.
ROASTING
COFFEE
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. Throughout the roasting process the beans must be kept
moving so they don't burn or roast unevenly, and cooled, or quenched, when the
right moment has come to stop the roasting. Coffee that is not roasted long
enough or hot enough to bring out the oil, has a pasty, nutty, or
bread-like flavor. Coffee roasted too long or at too high a temperature is
thin-bodied, burned, and industrial-flavored. Coffee roasted too long at too
low a temperature has a baked flavor. Roasting must be stopped at precisely the
right moment to obtain the flavor and roast desired. The beans are quickly
dumped into a metal box, where pyrolysis continues until the beans are quenched
with either cold air or a light spray of cold water. Most specialty roasters
air-quench their coffee.
Some coffee producers do not
have their own roasting machines and rely on others to roast their beans for
them. During the roasting process the water that is contained in the bean
evaporates making for a lighter yield than what was originally put in the
roaster. This makes it impossible to rely on weight to ensure that the beans
that went into the roaster are in fact the beans that come out. For this reason
many producers in Indonesia will supervise the entire roasting process of their beans as some ethically
challenged roasters have been known to switch the quality of bean that they are
roasting with an inferior quality or even take out some of the beans and
replace the beans with corn. After corn has been roasted with coffee, it is
almost impossible to detect.
In conclusion, after learning about a few ways that your daily
consumption of coffee can be harmful to your health, we have concluded
that coffee can be much more beneficial for you when consumed in
moderation. Although our findings on the matter of coffee and its
effects on your health provided to be informative, we believe that more
research needs to be done in this area.




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