How does a coffee maker work?

Hoe werkt een koffiezetapparaat?

Many people buy coffee at Starbucks, Supermarket or at the specialty coffee shop. Delicious coffee that you can easily throw into your coffee maker. However, have you ever thought about how your coffee maker works? In this study we investigated how a coffee machine works and which different coffee machines you have.

To make coffee you need heat or pressure to extract the coffee aromas from coffee. Water can be pressed through the ground coffee under pressure, both cold and hot. Aromas can also be extracted from coffee without pressure, by running hot water through ground coffee. As the water runs through the coffee, it absorbs the oil, flavor and aroma.

Each coffee machine functions in its own way. That is why we have listed the most common coffee ways with their pros and cons.

How does a Filter coffee machine work

A common coffee machine is a filter coffee maker. This one is common because it is cheap and gives somewhat nice coffee. The real coffee connoisseurs will rather skip this coffee. A big advantage is the ease of maintenance with the filter coffee maker.

Filter coffee owes its name to the way it is brewed. By means of coffee in a filter over which hot water is then thrown. Then the coffee runs into a jug voila. Filter coffee is very similar to the technique used in Slow Coffee.

You can choose to buy pre-ground coffee in the store. You can also choose to grind your own coffee with a coffee grinder.

How does a filter coffee machine work?

Above you have the most common coffee maker. This works as follows:

You fill the water reservoir with clean drinking water.

The water runs through a one-way channel at the bottom of the machine past the heating element. As soon as the heating element is hot enough, the water will start to bubble. The bubbles create pressure that causes the water to rise. The water slowly drips into the filter with coffee in it. As the coffee passes through the ground coffee, it absorbs the flavor and oil from the coffee.

You can choose the amount of ground coffee you put in the filter. If you like strong coffee, you can put a little more ground coffee in the filter. To give a slightly clearer answer, you can use about 7-8 grams of ground coffee. This is about 1 scoop which you will receive with the machine.

How does an espresso machine work

In Italian "Espresso" means: "Pressed coffee". The Espresso machine therefore uses pressure to make coffee. Due to the combination of pressure and temperature, the taste can be optimally squeezed out of the coffee.

How does an espresso machine work

The first process is the flow meter. It senses whether there is water in the machine. The water then runs through the pump to the heating elements. Depending on whether your Espresso machine has a milk system, the water and steam will run in one direction. If you have a milk frother, the steam is generated in the top of the heating element.

Ideally, the temperature of the water is 90 degrees. The water is then pressed through finely ground coffee under a pressure of about 9 bar.

Espresso machines are mainly located in catering establishments and coffee bars. Large Espresso machines are usually used here with which you can make more than 4 cups at a time on average.

For the home you also have smaller Espresso machines that can make one cup at a time and also have a bean grinder in the machine. For an espresso machine you need more knowledge of how it functions best for a delicious cup of coffee. You also have fully automatic espresso machines such as this one.

How does a Moka pot work?

The Mocha-Pot is slightly less popular in the Netherlands as they have a slightly more controversial way of functioning.

How does a moka pot work?How does a moka pot work?

Place the water at the bottom of the Mocha-Pot. This is in the lower room. You put the whole thing on the gas or induction stove and let the water in the lower chamber heat up until it starts to whistle slowly. The whistle tells you that the water is starting to boil and pressure is building up here.

Because hot water becomes steam and increases in size, pressure is created in the lower chamber. There is a way for the water to drain and that is through the channel that hangs in the water. This causes hot water to run upwards towards the filter. The hot water runs through the ground coffee in the filter.

When the hot water runs through the coffee, it is under pressure and at a high temperature. The hot coffee then continues to rise until it comes out in the upper chamber. When the water is finished, you can detach the upper chamber and drink the coffee.

The brewing process is very similar to the way of making coffee with an espresso machine due to the pressure and high temperature. In both cases, coffee is pressed through the ground coffee under pressure. Nevertheless, the espresso machine will be more accurate due to the temperature measurement and pressure measurement. Unfortunately, it is not possible to precisely control the pressure and temperature in a Mocha-Pot. It is also possible that the coffee burns.