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How Filter Coffee machines work - Things you should know
May 11, 2018

The filter coffee is something that many coffee lovers swear by. It is famous in many parts of the world and enjoyed as a staple by many every day. There are various ways to make some delicious filter coffee and it has been done manually since ancient times. However, today, we have machines that make the whole process easier. If you are a filter coffee lover and are looking to buy a machine for making it, here are a few basic things that you should brush up before making a decision.

The filter coffee-

To us Indians, the filter coffee is synonymous with South India. Many parts of Tamil Nadu, Kerala and Karnataka are known for their excellent brews. However, the filter coffee is enjoyed as a part of many cultures across the world. The French filter coffees are famous world over and the Belgian filter coffee is considered to be an exotic treat.
Basically, filter coffee refers to letting a stream of hot water pass through ground coffee beans and collecting the concentrated drip to enjoy the coffee as it is or with milk and sugar or in a slightly diluted form by adding more water to the decoction.

The process of filter coffee-

There are different kinds of filters that yield different brews of filter coffee. While brewing filter coffee, there are three common types of filters. They are:
Paper filters – These produce the purest filter coffee decoctions that do not contain any oils or coffee powder particles.
Cloth filters – These let some oils get collected in the decoction as the absorption is not as good as the paper filters. However, the finer particles get filtered out.
Metal filters – These filters yield thicker decoctions that drip down from tiny holes in the metal filters. Some powder particles and oils may be present in the decoction.
Each kind of a filter produces coffee with a different taste and people have specific preferences.

Difference between espresso and filter coffee-

The espresso is a machine-made coffee that is highly concentrated. The espresso machine pushes a burst of boiling water under some pretty intense pressure to get a shot of espresso. The process is very quick and doesn’t take time like how the process of making filter coffee does. Espresso is generally had in very small quantities as the concentration of caffeine is too high. This is also why we cannot compare the densities of espresso and filter coffee as the quantity that is generally consumed is very different. But, the espresso is generally considered to be denser than filter coffee.

How the coffee machine works-

Filter coffee machines typically mimic the manual process of making filter coffee. A heating coil heats up water and distributes the steam and hot water on the ground coffee powder evenly so that the water will eventually soak up the flavour and drip down the filter to get collected in a jar. These are generally called as drip coffee machines.
Even though the general process is the same, the filter coffee machine and espresso machine are different mainly because of the water pressure and temperature and the time it takes. So, make sure to check the specifications carefully before you buy a filter coffee machine.