Friday, August 28, 2009

Find Out Some Interesting Facts About Coffee Makers

By April Kerr

Coffee has been part of anyone's lifestyle. In cafeterias, offices, homes, or just about anywhere, it has evidently been present either as a plain beverage to awaken you, or as a more useful substance in the field of medicine. Since it's is one of the most commonly aromatic substance, doctors and nurses have used it in hospitals to test the olfaction of an individual.

Years back, people shed their sweat and blood before a cup of coffee can be produced. It involves a lot of processes, from roasting, to grounding and boiling. Then on the 19th and 20th century, people learned that it is pointless to roast the coffee beans because it produces the same delicious drink even if it's just plain ground coffee.

When coffee makers were invented, it was so much easier for people to make a cup of coffee. They need not boil water in another container because water is boiled inside the coffee maker itself. Coffee makers consist of two chambers that work through the automatic drip-brew process. One chamber contains the ground coffee and filter, and the other chamber contains the boiling water.

In the 19th century, vacuum brewers came into existence and became renowned. It has a lower and an upper chamber that works using the vacuum principle. In the lower chamber, water is heated first. The rising temperature causes increase in pressure, pushing the water out through a tube that leads to the upper chamber. Heat is then removed once the lower chamber runs out of contents. Meanwhile in the upper chamber, the coffee grounds are kept, and once water reaches them, their flavors are extracted. After heat is removed, vacuum pulls the brew back into the lower chamber, where the coffee is strained and then poured out.

Still in the mid-nineteenth century, percolators with detachable lid covers came out in United States. Water is first heated until it boils. Once boiling, water travels through a metal tube heading to the coffee grounds. Until the brew is saturated with coffee flavor, the process is done over and over again.

Another type of coffee maker works through another principle called thermosiphon. These coffee makers are known as electric drip or dripolators. Cold water from its storage passes into a hose that opens into the heating chamber. By way of pressure produced from heat and siphoning effects, water moves into a spray head while passing through a separate hose. From the spray head, water goes to the ground coffee. It is then filtered and then poured out.

Manufacturers have made so many coffee maker designs when the years passed, and all of these have made a truly remarkable coffee experience for people.

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