Coffee Maker

A coffee maker is a machine that is used to prepare coffee instantly. Throughout history there have been various kinds of coffee makers, each with a different principle. However, these appliances have always been simple to operate, cheap to purchase and able to produce coffee on a continuous basis.

Some of the earliest coffee makers were the vacuum based devices. These coffee makers used a principle of heating water at the base with the help of a heating element and then drawing this heated water to an upper chamber by creating a vacuum difference. The heated water that would enter the upper chamber would then come in contact with the coffee grounds that were placed there and the coffee would be brewed in it. When the coffee would be brewed properly, which was indicated by the aroma, the heating element would be shut off, which would again bring the coffee back into the lower chamber. However, this time, it would come filtered through a strainer which made this coffee extremely pure and clear. That is the reason why vacuum coffee makers are still in demand today, even though newer versions have thronged the market.

The coffee makers available today have a main chamber in which the water is meant to be introduced and a separate chamber that contains the coffee grounds. These two chambers are connected by means of a hose and the inlet of the water to the coffee grounds is facilitated through a small hole at the bottom of the water chamber which connects to the opening of the hose. The heater is placed directly below the water chamber.

When coffee is to be made, enough water is poured into the chamber and the coffee grounds are introduced. The electricity is then powered on, which makes the water boil. When the water boils enough, it begins to rise in the hose and comes to the coffee grounds. A valve in the hose prevents the backflow of the water. When the water reaches the coffee grounds, the coffee starts brewing. This is then dispensed through a drip system into a waiting container.

Coffee makers are electrically powered. There are some versions that use batteries for their power source. These are the portable machines. To regulate the temperature in the coffee maker, a thermostat is used. The thermostat has a sensor attached to it that keeps checking the temperature inside the coffee maker. Once the temperature of the water reaches boiling point, the sensor understands it and signals that to the thermostat. This makes the thermostat stop heating the water in the container. Excessive heating of the coffee maker could be dangerous because it could lead to an excess building of steam which could even cause the coffee maker to explode. The thermostat is, thus, a preventive device in the coffee maker.

The body of the coffee maker can be made of glass or thermo-resistant plastic. The glass coffee makers are more durable but they are also costlier than their plastic counterparts. There are various useful features present in coffee makers today such as timer settings, auto shutoff, large displays, temperature adjustments, etc. All these are helping make the coffee makers more versatile and useful for the present day user.

Coffee makers are small devices that can be easily placed on the countertops of kitchens. Today, these devices are very commonly found in homes across the world. There are variations of coffee makers to make espresso, cappuccino, mocha and other kinds of coffees. These may use the same principle as that of a normal coffee maker machine but may have different arrangements for the additional ingredients and methods that brewing these kinds of coffee would require.

This Coffee Maker Review is Written/Updated on Apr 27th, 2009 and filed under Kitchen Appliances. Both comments and pings are currently closed.

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