Coffee Maker and Their Evolution into Different Types
The aromatic property of coffee has allowed people to use it in so many ways. It has helped people stimulate their senses and made conversations go for hours in cafeterias. And most of you are not eve aware that coffee has been taken to higher form of usage in clinics, not as a beverage, but as a substance for testing the olfactory nerve of patients.
Many years ago, a cup of coffee was never easy to make. Coffee beans were being roasted then grounded, placed in a hot pot, and boiled under water. During the 19th to 20th century, people learned that roasting coffee beans was not really necessary, and that adding ground coffee to boiling water was enough to make a delicious drink.
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.
One type of coffee maker that became popular in the 19th century is called a vacuum brewer. It uses the vacuum principle to produce a clear brew. How does it work? Water is heated in the lower vessel until it expands to force the contents through a tube. This tube leads to the upper vessel that contains ground coffee. Once the lower vessel is empty, heat is removed. Vacuum then pulls back the brewed coffee and passes through a strainer in the lower chamber from where it is poured out.
Another coffee maker was introduced in the mid-19th century in the United States. Percolators are first filled with water and subjected to heat. When the water boils, water travels through a metal tube going into the coffee grounds. The same mechanism is done repeatedly until the coffee grounds run out of flavors.
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.
Coffee makers have been designed in different ways through the years. All these coffee makers made coffee experience incomparable from other beverages.
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Tags: beans, beverage, coffee, drink, dripolators, filter, gadget, grounds, kitchen, percolators, roasterSeptember 04 2009 | coffee | No Comments »