There are four varieties of commercially viable coffee: Arabica, Liberica, Excelsa, and Robusta. Growers predominantly plant the Arabica species. Although less popular, Robusta tastes slightly more bitter and contains more caffeine.
KAOLIN
Etymology
Noun
kaolin (countable and uncountable, plural kaolins)
A fine clay, rich in kaolinite, used in ceramics, paper-making, etc.
Synonyms
• china clay
• E559 when used as an anti-caking agent
• paper clay
Source: Wiktionary
Ka"o*lin, Ka"o*line, n. Etym: [Chin. kao-ling.] (Min.)
Definition: A very pure white clay, ordinarily in the form of an impalpable powder, and used to form the paste of porcelain; China clay; porcelain clay. It is chiefly derived from the decomposition of common feldspar.
Note: The name is now applied to all porcelain clays which endure the fire without discoloration.
Source: Webster’s Unabridged Dictionary 1913 Edition
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