Geyser coffee machine operation principle

Just the thought of a wonderful invigorating drink - coffee with foam, causes a lot of positive emotions. But not all coffee lovers know that there are many types of coffee makers, one of them is geyser, which prepares a drink due to steam pressure. The appearance of the coffee maker and the principle of its operation resembles an erupting source, due to this, the device has received an appropriate name. What is a geyser coffee machine, the principle of operation of which is directly related to its name, we will consider in the article.

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Geyser-type coffee machine:

principle The first time this type of device appeared in the early 19th century, the most successful model was developed by a talented Italian, Alfons Bialetti, over 80 years ago. Initially, the models of coffee makers were made of aluminum, but more modern models are made of stainless steel and ceramics.

Important! Geyser coffee machine is designed to prepare a drink from pre-ground beans. In this type of device, steam and hot water pass several times through the ground coffee.

In order to understand what a geyser coffee maker is, the principle of operation of such a system and the different the result, we will get acquainted with its device in more detail.

Device

Components of the device:

• The lower container that is filled with water.
• The upper capacity, which is gradually filled with a ready-made drink. The upper part of the device has a filter with a seal, which passes the finished coffee.
• Filter in the form of a funnel with a mesh. The filter separates the two containers from each other.
• The thread available on both vessels allows to connect the upper and lower parts together.

Important! In the models of devices with which you can prepare cappuccino and latte, the tube for the falling asleep of ground coffee is equipped with a special valve. This element is designed so that milk, which under pressure turns into a foam, does not flow out.

Principle of operation of

The principle of operation of the coiler of the geyser type is as follows:

1. The lower part is filled with water.
2. The filter is filled with a crushed mixture.
3. Two halves of the coffee machine twist together.
4. The device is activated, including the network. Such a coffee maker on a gas stove can be used.
5. During heating, the water turns into steam.
6. The vapor pressure gradually increases and pushes the boiling water upward.
7. Steam pushes water through a filter with ground coffee.
8. Water, saturated with the taste and aroma of the drink, gets through a special tube with a seal in the upper flask.
9. You can drink coffee when all the water from the bottom of the device goes to the top tank.

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Types of geyser type

Geyser type devices can be:

• Electric. Work devices from the electrical network.
• Gas usual. Instruments can be placed on the stove like an ordinary teapot.

Important! For the manufacture of devices, most often used aluminum or its alloys, which significantly reduces the weight of the device. There are models and steel - they can be heated on induction hobs.

Useful advices:

• When choosing a geyser type device, pay attention to the handle: it must be made of heat-insulating materials.
• Select the top part of the coffee machine transparent to keep an eye on the process of preparation of the drink.
• For the preparation of a quality drink, it is necessary to select the correct temperature and grind the coffee.

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How to brew coffee in a geyser coffee machine?

To prepare your favorite drink, you need to learn how to use the device correctly. Follow the simple procedure to brew coffee in a geyser coffee machine:

1. Separate the bottom of the device from the top, remove the filter.
2. Pour cold water into the bottom flask, not exceeding the filling level.
3. Add freshly ground coffee, medium or coarse, to a special filter.
4. For the high-quality operation of the entire system, the filter tube must be filled with ground coffee completely.

Important! Do not compact the coffee tightly, otherwise the water will not pass through it.

1. Remove the excess from the filter rim.
2. Assemble the coffee maker by covering the bottom of the top of the unit and tighten it tightly.
3. Depending on the model, connect the device to a network or put it on a stove.
4. Brew coffee on slow or medium heat( temperature), so that coffee has transferred all its useful properties to the drink. On average, in a geyser coffee machine, the drink is cooked for 5-10 minutes.
5. Remove the appliance from the cooker or unplug it as soon as you hear a characteristic hiss.
6. Pour the coffee into the cups.

Important! You can not leave the ready-to-drink be boiled, as this reduces its taste and useful qualities.

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Useful tips for improving the taste of the drink

It is not difficult to weld coffee in a geyser coffee machine, and the more you train, the better the taste of the drink. Listen to the following recommendations to ensure that the result and taste of the drink always pleased you:

• The ideal aroma of coffee you will get if milling is carried out immediately before the preparation of the drink.
• Use only coarse or medium grinded coffee.
• Use only pure fresh water to prepare the drink: spring, bottled or filtered. The quality of water has a very strong effect on the taste of the drink.
• After each preparation, wash the device so that the thick or the remaining coffee oils do not affect the taste of the drink. When cleaning, do not use detergents, simply rinse the unit thoroughly with lukewarm water.
• Tighten the top and bottom of the unit tightly so that the unit functions correctly.
• Do not open the coffee machine until the end of the beverage preparation process.
• Prepared beverage in warmed cups - so the coffee will be even tastier and smoother.
• If the drink is liquid and weak concentration, then reduce the grinding of the grains.
• If there is a residue in the coffee beverage, then grind it.
• If the coffee maker is new, then the first two cups of cooked coffee, pour into the sink, since the beverage may contain technical oils and other components of new technology.

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Recommendations for the care of

technology The maintenance of the geyser technique is quite simple. To ensure that the device always pleased you with your favorite drink and served as long as possible, follow these recommendations:

• After each coffee brewing process, let the device cool down, and then rinse with warm water. Clean the steam valve.
• Regularly monitor the condition of the filters and gaskets. Thoroughly clean the filter from the coffee grounds - for this procedure, use a special tool to wash the coffee maker or soda.
• Check and clean the safety valve, as its blockage threatens to explode the equipment.
• Do not clean the inside of the device. Due to the sedimentation of coffee oils, the formed plaque will prevent the appearance of a taste of aluminum. If the device is made of a different material, this problem should not bother you.

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How to choose a geyser type coffee machine?

When buying a geyser type coffee machine, pay attention to the following points.

The volume and size of the

The geyser coffee machine, the principle of which you now understand, is designed for a certain amount of coffee. For example:

1. If it is designed for four servings, then you will not be able to cook one cup.
2. If you load less ground coffee and pour less water, the appliance simply will not work.

Important! Modern models are designed for 1, 2, 3, 6, 9 and 18 drinks.

Device power

This characteristic depends on the volume - the larger the volume, the greater the power. The power varies from 0.45 to 1 kW.

Important! If you often prepare coffee and in large quantities, consider the fact that the higher the power value, the greater the power consumption for devices with such power consumption.

The material is based on the

. The coffee makers are made of:

• Aluminum.
• Steel.
• Ceramics.
• Plastic.

What you need to consider here:

1. Geyser coffee machines made of stainless steel can be washed in a dishwasher.
2. Aluminum appliances can leave an unpleasant aftertaste, but after a while the coffee oils on the walls of the device will prevent such a nuisance.
3. In modern models, a flask is usually made of metal, and a lid of transparent plastic or glass. This is very convenient, since it shows the process of preparation of the drink.

Handle of the

This item must not be heated. In addition, the handle should be at a sufficient distance from the heating elements, otherwise - you risk getting a burn.

Type of coffee maker

The electric model has several advantages:

• Disconnects when the cooking process is completed.
• Some models have the ability to prepare latte or cappuccino.

The coffee maker on the gas stove will be somewhat more economical in terms of maintenance during the use of household appliances.

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Coffee recipes

What is the best coffee for a geyser coffee maker?- Choose you. We propose to try to make coffee according to the following recipes in order to determine this issue more easily and to take advantage of the opportunity to assess the taste qualities of different types of one of the most popular beverages in the world.

Espresso

To prepare an invigorating and strong drink you need 8 grams of medium grind coffee and 20-30 ml of water. If desired, add cinnamon or a slice of lemon to strengthen the invigorating effect of the drink.

Frappe

To prepare this drink you will need:

• Portion of espresso.
• Ice.
• 15 ml cream.
• Sugar to taste.

Cream, ice and a serving of espresso whisk in a mixer. Prepared drink pour into a glass of ice and add sugar to taste.

Cappuccino

To make a classic cappuccino, you will need:

• Portion of espresso.
• 50-60 ml of milk.

Use a blender or cappuccino to foam the milk and add directly to the espresso cup. Add the cinnamon or syrup to taste.

Important! Note that milk is only beaten if it is cold, warm or hot - it will immediately boil without increasing in volume.

Latte

For this wonderful drink you need a serving of espresso and 80 ml, prepared in a blender, of foamed milk. In contrast to cappuccino, in a cup, first pour the milk, and then a thin trickle - espresso. Should get a drink, consisting of three layers: milk, espresso and foam milk.

Mokko

For a stunning chocolate drink you will need:

• Portion of espresso.
• 30 ml of milk.
• 15 ml chocolate syrup. Whipped cream.

At the bottom of the cup, pour the chocolate syrup, followed by espresso and warm milk. In the drink, add grated chocolate and whipped cream.

"Native Indian" coffee

To prepare a drink you will need:

• A portion of freshly brewed coffee.
• 2 tbsp.spoons of dark rum.
• 2 tbsp.spoons of bitter chocolate.
• Ginger at the tip of the knife. Nutmeg at the tip of the knife.
• Sugar to taste( better reed).

Pour the melted chocolate into the cup and add the spices. Pour hot coffee on top. Sugar is dissolved in rum and add to the drink.

Use a coffee maker on a gas stove or an electric geyser coffee machine to pamper yourself with the best invigorating drink. Diversify the morning with various recipes of coffee, preparing it in the best traditions, and the day will definitely be successful.