Coffee Pots & Percolators
Coffee-pots are made in three styles:
Pots for boiling; Drip pots, or biggins; Percolators.
The pots in which coffee is boiled are deep, holding from i to 4 quarts; larger
sizes are sometimes called coffee boilers. The spout, which often has a strainer
on the inside, is stubby and placed at the top of the pot so that the grounds
will not get into it during the boiling process. This style of pot should be
sold to those who drink substitutes for coffee, since these require hard boiling.
These pots are made of enameled ware, tinware, aluminum, and nickel-plated
copper.
In the drip pots or in the biggins the pulverized coffee is put into a bag
or receptacle in the top of the pot and hot water poured through it. This arrangement
originated in France.
The percolator is a later invention upon the same principle. Finely ground
coffee is placed in a receptacle at the top. A tube leads from the bottom of
the pot up through this receptacle. When the water is sufficiently hot it rises
through the tube, strikes the cover, spreads over the coffee, and percolates
through it.
Coffee owes its refreshing properties to the presence of three substances:
Caffeine, 1 to two per cent; Volatile oils (the aroma), a trace Caffeo-tannic
and caffeic acids.
These substances are extracted by boiling. When coffee is prepared by the
drip or percolator method the hot water takes up the volatile oils, which produce
the delicious aroma of coffee, and the caffeine; and the bitter acids the most
injurious ingredients, which attack the lining of the stomach are left in the
grounds.
Percolators are very decorative utensils and are often sold in other departments
than the Housefurnishings Department. They are made of enameled ware, aluminum,
nickel, silver, or copper, and are designed for use with coal, gas, alcohol,
or electricity. Their bases are sometimes wide and flat, sometimes narrow and
curved and their handles are of wood or porcelain; wood is a poorer conductor
of heat than porcelain. Pieces of horn or ivory are sometimes inserted between
the metal and the wood in the handle, as these materials are extremely poor
conductors of heat.
Glass tops of percolators are also sold separately.
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