Today, the thermos is a plastic or steel flask, which is located inside the body of the same materials. Modern thermoses are designed to store both hot and cold drinks, as well as food. Only high-quality thermos is able to maintain a temperature of not less than fifty degrees during the day from the moment when hot water is poured into it. Thermos is an indispensable thing at work, fishing, camping and hiking. Few tourists can do without it in winter, for example, in the mountains or on a hot summer day in a desert area. The acquisition of a thermos is not an easy task, since there are quite a few types of this product, let alone the parameters by which they differ from each other. Our optional guide will help you learn about all the features that you should pay attention to first.
Content:
The best manufacturers of thermoses - which company to choose
The Russian market is replete with various manufacturers of thermoses. The main share belongs to European firms, but there are companies from other countries. The products of most well-known brands are quite familiar to consumers of such products. Fans of hiking and traveling are often convinced that the quality of products is at a very high level.
Those who do not have the opportunity to read the article to the end, we suggest to get acquainted with the most popular brands:
1. Tatonka
2. Primus
3. Thermos
4. Berghoff
5. Stanley
Thermoses from these manufacturers can boast of excellent materials of manufacture, good assembly, reliability and durability of service. For those who want to choose a specific model, we recommend to go to our rated best thermos.
The principle of operation and the device thermos
The thermos is a device used in everyday life to store liquids and food at a constant temperature for a long time. Thermoses are capable of maintaining not only high, but also low temperature conditions. Some models can be used as cooking and beverage containers.
The structure consists of an inner flask made of well-polished glass, plastic or metal. An existing coating does not oxidize when contacted with products or liquids. The outer tank is usually made of similar materials, its outer part is treated with a special copper coating capable of reflecting heat. Between the walls of these tanks there is an insulating vacuum layer, and at the bottom is an absorbent substance that removes air residues from the vacuum. The tank is closed with a button with a heat-insulating layer. The tightness of the design is provided by a sealing material, for example, silicone. The cup usually serves as a lid and twists at the top of the thermos.
The main task of the thermos is to keep the product inside hot. This is ensured by minimal heat transfer from it to the surrounding space. If it is necessary to maintain a low temperature, then a reverse process occurs - a small thermal transfer from the external environment to the product.
Types of thermos
Universal
The design of the universal thermos is quite wide, and the neck has a large diameter. Due to this, in such a thermos it is possible in addition to beverages to store food. Cork happens to have a valve so that it is more convenient to pour drinks. A lid, like most other thermoses, serves as a glass or a cup for food. Many universal thermoses have a handle located on the side, thanks to which it is easy to tilt the structure.
Advantages:
- suitable for drinks and food
- has a side grip
- acceptable cost.
Disadvantages:
- large dimensions.
Bullet
This unusual name of the design received because of its elongated cylindrical shape, which visually resembles a bullet. This thermos is considered very compact and easy to transport. It is quite easy to put in a bag or backpack, and also put in one of the side pockets. Thermos has a narrow neck, as it is intended exclusively for the storage of liquids. Modern models are not equipped with a cork, and a screw cap with a valve. This solution allows you not to open the lid every time you want to pour a drink, which means that the contents of the thermos will keep the desired temperature longer. There is also a top cup.
Advantages:
- compact,
- provides minimal heat loss
- low cost
Disadvantages:
- suitable only for liquids
- usually does not have a handle.
With pneumopump
The design of the thermos is made in the desktop version. It is quite wide, has a massive cover with a pump at the top, from which a special hose extends to the bottom. Similar covers are available at thermos bullets. Their main advantage is the absence of the need to unscrew the lid every time in order to pour a drink. The user need only click on the pump, and then from the spout-hole will start the supply of hot tea or coffee. Such models last longer than all others retain heat when used. Thermos with pneumatic pump is ideal for use in the field kitchen or picnic.
Advantages:
- large volume
- long-term heat retention
- convenience of spilling liquid.
Disadvantages:
- large size design
- doesn't fit in every backpack
- price is above average.
Sudkovsky
This type has the widest design, inside which can fit from one to three containers. Thermos sudok is a great option for the simultaneous storage of multiple products. For example, you can pour liquid (soup, soup, borsch) in one container, and put a second dish in another. It is especially convenient to carry lunch in such a thermos. This is suitable for those who are not able for any reason to eat in the working dining room or a nearby cafe. Many models are equipped with a spoon, fixed in the holder on the side.
Advantages:
- impressive volume
- the ability to store several dishes at the same time,
- complete set of necessary devices.
Disadvantages:
- very large dimensions
- high price.
Thermocup
Small construction in the form of a mug with a handle. Such thermos is convenient for daily use, for example, at work. It can store not only drinks, but also food, thanks to the wide neck. Convenient in the thermocup brew fast food. Models differ in terms of volume and configuration. Some options have a lid that does not need to be removed, but just push the special lever to drink. This is especially convenient for motorists who want to take a sip on the go.
Advantages:
- compact size
- ease of use,
- low cost,
- a large number of design decisions.
Disadvantages:
- average volume
- not intended for long-term heat retention.
Thermos selection options
Body material
One of the main parameters is the case material. This is what affects the quality of the product, keeping the temperature as long as possible, and other operating properties:
1. Metal
It has high strength, is able to withstand shock and mechanical damage. This thermos is perfect for traveling and hiking.
2. Plastic
It has less weight, it is cheaper than a metal case. It will be an excellent option for use at home, in the office, at the cottage, picnic or walk.
Inner bulb material
Equally important is what the inner flask is made into which the product is directly poured. From this parameter depends on the preservation of the required temperature, and safety, since the food should not interact with the material.
1. Glass
Often used option, which was previously in each thermos. The glass provides excellent storage quality, keeps the heat well and is easy to clean. The only minus of such material is its fragility. If used carelessly, it may be damaged, leading to poor insulation. The thermos with a glass flask will be suitable for infrequent use in the conditions of the house or the dacha.
2. Plastic
The main advantage is the light weight of the material and its strength. The flask will not suffer from blows; therefore, it is possible to take such a thermos with you even on the most extreme hikes and expeditions. True, plastic has its drawback - it is the ability to absorb odors. After fragrant drinks and dishes it is very difficult to get rid of smells, which means that it is likely that the taste of new products will be mixed with them. This option is not critical for those who use the product constantly for something alone.
3. Steel
This is the best option. Differs in resistance to damage, keeps heat well, does not absorb odors, is easy to clean. Even despite the greater weight compared to the two previous materials, it remains the preferred choice in most cases. It is best to purchase a stainless steel, because it does not corrode over time.
Volume
When buying a thermos desired amount is determined depending on the purpose. Calculate the stock, taking into account the number of people who will use the product. Larger constructions keep heat better, but if the thermos is too large, it can become a burden in your luggage.
1. The values of the small volume tanks range from 0.25 to 0.5 liters. These are usually thermomugs or small thermos bullets.
2. The average volume of the tank is usually in the range of 0.7 - 1 l. They are an excellent option for liquid food. Can be used by two people.
3. A large volume of containers starts from 1.5 liters. and higher. Such thermoses will be the best choice for a company of three or more people.
Build quality
Choosing a thermos, be sure to shake it - no sounds should appear. Any crackling, rattling indicate a poor fixing of the inner bulb. Such a product will break very quickly.
Thermos stopper provides the necessary insulation, allowing you to keep warm longer. Make sure that in a twisted state, it was as tightly pressed against the neck.
Thermos should not have any internal odors. If they are present, it means that the manufacturer has saved on materials. Such products are capable of absorbing harmful substances and may be harmful to health.
Which thermos to choose
1. For long journeys, difficult expeditions, difficult trips, choose a thermos with an average volume of 0.7 to 1.5 liters. The material is desirable to take steel or plastic. It is good if the model is universal so that it is possible to store not only drinks, but also food.
2. For simple picnics, fishing trips, attacks on the nature fit thermoses-bullets, universal and sudosy. Count on the number of people. The material of the body and the inner bulb can be steel and plastic.
3. Sudoku thermos will be a good helper in conditions where it is not possible to cook food.
4. Thermocup will be an excellent option for every day. A small amount is enough for one person, and compact size will allow you to put such a thermos even in a small bag.
How much does a thermos
1. Thermos bullets and thermomugs will cost a modest amount of about 500 to 1 thousand rubles.
2. Sudka thermoses will cost more - from 1,500 to 3 thousand rubles.
3. Universal (classic) thermoses vary in price, as it depends on the material and volume. Average values vary between 700 and 2 thousand rubles.
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