Processing Coffee (#)

  „The first stage of pulping is used to remove the green cherries from the ripe cherries.  In the pulping machine the internal pressure is monitored to push the coffee against a screen with holes only large enough for a coffee bean (not cherry) to pass through.  Since the ripe cherries are soft they break and the seed is released through the screen.  Video showing pulping machine and pulp separating barrel medium (5.6 Mb) or small (1.5 Mb).  “

http://www.coffeeresearch.org/agriculture/ processing.htm - Cached

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Some slightly related:

Specialty Coffee Bulletin Board :: View topic - C-Member Homecoming and Open House

  „Chuck takes "civilians" there on coffee plantation tours and has them pick their own coffee cherries before their first breakfast. He says picking the ripe cherries from the unripe ones on the same branch is a skilled task, and no one ever looks at a cup of coffee the same way after doing this. One of his best quotes came when someone asked what ha“

http://www.scaa.org/.../ viewtopic.php?p=280&sid=1711e5ad3a2523b9f03e3129a54899b3 - Cached

Coffee Growing at Home

  „Ripe cherries should be harvested and picked from trees with a high production and without any disease or other affliction.  Pulp the cherry by hand, wash with water, and ferment in a small container until the pulp falls off.  This can be determined simply by rubbing the bean in you hands during the fermentation process.  Wash again with fresh water.  Any coffee beans that float at any stage of washing should be discarded.  The beans must then be dried to about 20% moisture content on mesh screen in open and dry air, but not in direct sunlight.  After pulping a coffee will have between 60-70% moisture content so you can determine the appropriate stopping point simply by weighing the beans.  Otherwise, you can bite the bean open to ensure that it is dry on the outside and slightly soft and moist on the inside.  Alternatively, a pulped bean can be used immediately for planting and in some areas this is considered advantageous.“

http://www.coffeeresearch.org/coffee/ homegrowing.htm - Cached

Coffee History - Learn about coffee...

  „SINKERS The cherries which sink are excellent and ripe, perfect for processing into high quality coffee Our mill works on a binary system which processes the sinkers along a totally different path than the floaters. The cherries are then passed through a pulping machine which squishes out two coffee seeds. Each cherry has two coffee beans inside. This process exposes a sticky inner protective coat which surrounds the parchment.“

http://www.javacafe.com/cofhistory02.htm - Cached

Arabica vs Robusta: No Contest (INeedCoffee.com)

  „These trees grow in semitropical climates near the equator, both in the western and eastern hemispheres, at high altitudes. Because ripe Arabica cherries (unroasted beans) fall to the ground and spoil, they must be carefully monitored and picked at intervals, which increases production costs.“

http://www.ineedcoffee.com/02/06/arabica/ - Cached

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