The principle of operation of a geyser coffee maker: characteristics, selection rules, operation and care

To enjoy a cup of hot coffee, it is not at all necessary to purchase a bulky and expensive drip or carob-type unit. The universal geyser coffee maker has excellent performance characteristics. The principle of its operation is quite simple, but in order for the prepared drink to have an excellent taste, and the device itself has served for more than one year, you need to know the basic rules of care and operation.

Short description

Original geyser coffee makers were actively used back in the distant Soviet Union. In those days, they were made from very thin aluminum, which is why they often had an unsightly appearance. But few people know that the first such device was invented by the Italian Alfonso Bialetti back in 1933. Then everyone called this coffee maker "Moka Express". In addition, it was this person who founded one of the largest companies, which is still engaged in the production of various coffee makers of this class (Bialetti).

Initially, the geyser unit had a strict octahedral design, thanks to which it immediately began to enjoy immense popularity in different parts of Europe, and especially in Italy. Such a coffee maker was and is an indispensable item in every kitchen, due to which it was included in the Guinness Book of Records as the most popular coffee pot in the whole world.

At first glance, it may seem that the device looks like an ordinary small kettle, but in fact it is a rather complex device that has many advantages. The preparation of a flavored drink is based on the effect of steam pressure, which rises during boiling. It is such a coffee maker that is in great demand in different parts of the world, since it can be used to brew some of the most delicious drinks, with an unusual aroma and unique aftertaste.

The disadvantage of such a device can only be attributed to the fact that the user needs to wash the filter after each use.

Functionality

The older generation probably remembers the existence of such a device and often uses it in everyday life, but young housewives may not know anything about it. The principle of operation of a geyser coffee maker is based on the well-coordinated interaction of all structural elements. The unique operating principle of the device is based on the presence of different compartments:

• The lower part is presented in the form of a metal container into which water is poured.
• The upper compartment is the kettle itself, in which the finished drink is accumulated.
• A special metal filter located in the middle. It provides for the presence of small holes and a tube where pre-ground coffee is poured.
• The upper and lower parts are connected by a screw thread, and the filter is placed between them.

The preparation of a fragrant drink also has its own nuances and sequence of actions. Under the influence of high temperatures, the water begins to boil gradually, turning into steam. When a lot of hot steam builds up, water droplets are pushed out through a metal filter. The top compartment of the kettle is filled with prepared coffee. As a result, the consumer receives a tasty and aromatic drink without the grounds.

Advantages and disadvantages

When the principle of operation of a geyser-type coffee maker is considered, it is necessary to familiarize yourself with its positive characteristics. Only in this case the consumer will know what kind of device he is buying, and what functionality can be expected.. The main benefits include:

• Affordable cost. Experts note that even the original models of the Bialetti Moka Express type, which are assembled in Italy, cost no more than four thousand rubles. Cheaper devices are produced by Chinese manufacturers.
• The finished drink always has a certain gustatory richness and piquancy.
• The device is compact, so you can store it anywhere.
• The consumer does not need to monitor the operation of the device all the time (unlike the common Turkish).
• The universal geyser coffee maker can be used not only for making coffee, but also for brewing various teas and herbal teas.
• The finished drink does not contain grounds, since the presence of a metal filter prevents sediment from entering the upper bowl of the teapot.

It is worth noting that for a more comfortable use of the coffee maker, you can purchase a model with a transparent lid. In this case, the consumer will have an excellent opportunity to prevent the beverage from flowing onto the table or stovetop.

As for the negative aspects, in this case there are not so many of them:

• The consumer should always monitor the degree of grinding of coffee or tea, since too small particles will quickly clog the filter, and it will no longer be possible to prepare a high-quality drink.
• If the induction cooker, which is popular today, is installed in the kitchen, then aluminum geyser coffee makers simply will not heat up on it. In this case, it is necessary to choose models made of durable steel (for example, Bialetti Venus).
• Each device is designed for a certain volume of liquid, due to which the consumer can prepare a limited number of cups at a time.
• The metal part of the device, even after a complete shutdown, remains hot for a long time, which is why it is necessary to follow the elementary rules of safe operation.
• The specific structure of the coffee maker can cause certain difficulties in caring for it.
• The geyser device makes delicious coffee, but without foam.

As practice shows, almost every drawback of such coffee makers can be eliminated if you adhere to the basic operational recommendations.

Choosing a quality coffee maker

In order for the purchased device to fully comply with all the requirements presented, it is necessary to carefully study some of the characteristics at the stage of its selection. Only this approach can save the average consumer from making an unjustified purchase. Experts say that when choosing a geyser coffee maker, special attention should be paid to the following points:

1. Handle quality. Convenience and safety of using the device largely depend on what material the handle is made of. It is very important that it does not heat up with the kettle, otherwise you can seriously burn yourself. In addition, it is best if it is located at a sufficient distance from the heated elements.
2. Dimensions. Before buying a coffee maker, be sure to consider its size. The thing is that the geyser device is designed to prepare a certain amount of coffee. If the consumer is going to cook one portion at a time, and the coffee maker is designed for four cups at once, then he simply will not work. This is due to the fact that when less coffee is loaded into the container than it should be, the device simply will not work.
3. Model. Today, both electric and conventional coffee makers of this type are on sale. Of course, those devices that operate on the mains have significant advantages. For example: some of these models are equipped with an automatic switch, thanks to which the device switches itself off after making coffee. In addition, more expensive coffee makers allow you to make delicious lattes and cappuccino.
4. Manufacturing material. Modern coffee makers are made from aluminum, steel, and even ceramics. Those models that are made of high quality steel can be safely washed in the dishwasher, which is a huge plus. But aluminum appliances can upset a real coffee connoisseur with an unpleasant aftertaste. But this drawback completely eliminates itself. Those coffee oils that cover all the walls of the device will prevent the manifestation of such an unpleasant moment in the future.

There are not so many recommendations for choosing a quality product, but each point is of great importance in the field of buying a universal and durable device.

Additional functionality

Standard models of geyser devices are designed to prepare an aromatic and tasty drink. But there are also more advanced products on the market that are equipped with various functions. Among all the variety, it can be noted:

• Light induction that lights up while using the coffee pot.
• An original sound alert indicating that the drink is ready to drink.
• Automatic shutdown of the device.
• A universal timer that allows you to set the period for turning on the coffee maker.
• Heating function, with which you can always maintain the optimal temperature of the prepared drink.

Basic operating recommendations

While preparing a drink in a geyser coffee maker, the consumer may face the main danger when the coffee or tea overheats and simply burns out. To avoid such a critical situation, you need to follow simple tips:

• If the kitchen is equipped with an electric, rather than a gas, stove, it will be much more difficult to monitor the temperature. In this case, it is necessary to use the smallest burner, for which the fourth operating mode is perfect. If you need to quickly warm up the coffee, then first you can set the six, and after a few minutes switch to the three.
• Before the coffee begins to fill the upper cup (after a few days of regular use, this moment will be detected unmistakably), you can put the coffee pot aside.
• At the final stage of preparation, you do not need to wait until the contents of the coffee maker begin to splash out in all directions. This is due to the fact that it is not liquid that escapes outside, but hot steam, which can spoil the taste of the drink. If the moment is missed, then the lower part of the coffee pot can be lightly doused with cold tap water. Thanks to this, the boiling process will be stopped.
• A small amount of water always remains in the bottom bowl, and it should be so.
• Many experts recommend not tamping the coffee you fill into the appliance, but in fact, this even needs to be done if in the end you need to get a drink with a pronounced taste. The main thing is not to make great efforts, the powder can be lightly crushed with a spoon.
• The filled water level must always be below the safety valve.
• Those who do not like to prepare aromatic coffee for a long time in the early morning can prepare everything they need even in the evening.

Proper care of the appliance

Due to the fact that the geyser coffee maker works under the influence of steam pressure, its maintenance is quite simple and logical. Each component is washed under running water. The use of chemicals and abrasive materials is strictly prohibited. As for the dishwasher, in this case everything is individual. You can always see typical recommendations in the attached instructions. It all depends on the material of manufacture. For example, classic models can be washed in the dishwasher, but after the first treatment they lose their shine and become dull.

You need to be especially careful with aluminum products, as their top layer can be easily damaged, and besides, coffee can have a characteristic metal taste. The inner surfaces acquire a brownish tint over time, but you should not try to remove it with various methods, since this plaque, on the contrary, protects a delicate coffee drink from negative interaction with body.

The utmost attention must be paid to the rubber gasket for the filter, since frequent use of the device leads to its rapid wear, which causes it to pass steam. This part should be replaced. In order for the coffee pot to serve as long as possible, it is necessary to carefully clean it of all unnecessary, without exerting effort and without using chemistry. After several years of operation, a special repair kit may be required, which costs only 200-300 rubles. It includes a new filter strainer and rubber bands. After that, the updated geyser installation will serve flawlessly for more than one year.