제 목 Is Machine Coffee As Important As Everyone Says?
writer Lillie

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What Goes On Inside a Machine Coffee Maker?

Enjoying a cup of coffee at home is easy with the use of a coffee maker. Some of the most sought-after models come with a programmable clock and even a built in grinder.

When you turn on the power the thermostat controls the heating element, which is circling the warming plate. It also has an aluminum water tube that runs through it.

Cold-Water Tube

A machine coffee maker takes the water you put into it and turns it into your cup of coffee. It does this by boiling the water before passing it through a system that generates high pressure to push it through a capsule of ground or soluble product. These machines use up to 15 bars of pressure as opposed to coffee percolators that operate at just one bar.

There is a reservoir in the bottom of your machine. It looks like a bucket. It holds the water used to make your drink. This reservoir has a hole at the bottom. It connects to the tube in the heating element on one side, and to an insulated tube that runs from the bottom of the machine to the tap on the other.

When you turn on your machine, the water in the reservoir passes up into the heating chamber and the thermostat tells it to warm up. As the water warms it expands. This pushes a screen under a portafilter that is filled with espresso and tamped. This pressure causes the screen to cut through the filter and let the espresso to flow into your cup.

The espresso that is produced by your machine is a rich and delicious coffee. It can have varying levels of acidity, based on the kind of coffee you choose. If you notice that your coffee has an unpleasant taste try changing to another filter paper or a coarser ground coffee. If the issue persists you should make an appointment with an authorized service technician for the de-liming procedure to clear out your machine. The most common cause of this problem is lime scale.

Hot-Water Tube

The white tube that has insulation at the bottom of your machine is hot-water tubing. It carries hot water from the heating chamber to the faucet on the top of your coffee maker. This water saturates the grounds, carrying their flavors down and into your waiting pot of coffee.

Certain coffee makers have the ability to keep the water warm, so that it's ready when you wake up. This is done by making use of a heater to create some steam. The steam is then directed towards the spout to keep your coffee warm until you're capable of pouring it.

Although it may appear that a coffee maker is complicated and expensive however, the majority of models are easy to operate and have little moving parts. A thorough cleaning and regular use should keep your machine in excellent condition for a long time to come.

Many coffee machines with integrated grinders allow you to add ground coffee from a container, then lock the portafilter into place and then flip the switch to start the brewing process. The pump will pressurize heated water until it reaches 220 psi pressure when the switch is turned.

One of the most frustrating things when making a cup of coffee is the need refill the reservoir frequently. Some coffee makers have machines that can be connected directly to the water line. This allows you to skip the reservoir. If you're a do-it-yourselfer, there are kits that can transform any machine into a coffee maker with an water line connection. This is a bit more complex and requires drilling holes into your machine to accommodate an adapter. This could weaken the structure of your coffee maker and lead to cracking around the drill holes. It's recommended that you purchase a coffee maker that is specifically designed to accept direct water lines to get the best results.

Resistive Heat Element

The heater is made from metal and has a specific resistance to electricity. It blocks the flow of current without stopping it completely, and a portion of the energy is converted into heat. This is what causes the heating of the water inside the boiler of your coffee maker.

The heating element is on the left side of the base of the machine and it looks like a light bulb filament or the component of your electric toaster. It is made up of an aluminum extrusion that is divided into two sections, with a tube to allow water to flow and the resistive element. (Watch video here). The resistance in this coiled wire is what causes it to heat up when it gets electricity.

When you turn on your coffee maker, the element is heating the aluminum water tube to the point where it boils. Then the bubbles float up through the white tube and are sprayed over your coffee grounds with the shower head. This water spray picks up essential oils from the coffee beans that are ground as it descends and also includes caffeine.

If your coffee maker is not release hot water, it's most likely that the pressure switch or heating element thermostat is defective. Both are able to be tested using a multi meter using the continuity test. You connect one pole to the electrical connection and the other to the body of the flange and it should read a number below 1. If the reading isn't there, then you will need to change the thermostat or switch.

The other major component of your coffee machine that could be the cause of issues is the water pump, or reservoir. It could get blocked with lime and that is the reason you should run a mixture of water and a descaling solution through it.

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