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Caffeine,
which is found in coffee and other foods (cocoa, tea), is that substance
that keeps us awake, both when we need it and when we don't want
it. Unfortunately, to some people this and other side effects of
caffeine are not welcome.
Decaffeinated coffee or "decaf" is coffee that has had most of the
caffeine removed. By weight, the amount of caffeine found naturally
in coffee is only about 1% for the Arabica and 2% for the Robusta
coffee beans.
When
you read "97% Caffeine Free", 97% of that 1% or 2% has been
removed.
There
are currently two methods used commercially that remove caffeine
from coffee:
European Process
Swiss Water Process
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