This utensil is made of metal or earthenware and operates on
the same principle as a percolator. The ground coffee is suspended above
the liquid in a cloth bag or a perforated receptacle and the water
percolates through it.
[Illustration: FIG. 4]
30. In case a more complicated utensil than any of those mentioned is
used for the making of coffee, the directions that accompany it will
have to be followed. But no matter what kind of utensil is selected for
the preparation of coffee, it should be thoroughly cleaned each time it
is used. To clean it, first empty any coffee it contains and then wash
every part carefully and scald and dry it. If the utensil is not clean,
the flavor of the coffee made in it will be spoiled.
31. METHODS OF MAKING COFFEE.--Several methods are followed in the
making of coffee, the one to select depending on the result desired and
the kind of utensil to be used. The most common of these methods are:
_boiling_, which produces a decoction; _infusion_, or _filtration_,
which consists in pouring boiling water over very finely ground coffee
in order to extract its properties; and _percolating_, in which boiling
water percolates, or passes through, finely ground coffee and extracts
its flavor.
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