To date, the thermos represents a plastic or steel flask, which is located inside the case of the same materials. Modern thermoses are designed to store both hot and cold drinks, as well as food. Only a high-quality thermos can keep the temperature at least fifty degrees within a day from the moment it was filled in hot. The thermos is an indispensable thing at work, fishing, camping and trekking. Few tourists can do without it in the winter, for example, in the mountains or a summer hot day in a desert area. The purchase of a thermos is not an easy task, since there are many types of this product, let alone the parameters by which they differ from each other. Our guide of choice will help you learn about all the characteristics that you should pay attention to first.
Contents:
- The best companies producing thermoses
- The principle of operation and the thermos device
- Types of thermoses
- Parameters of thermos selection
- Which thermos to choose
- How much is the thermos
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 famous brands are quite familiar to consumers of similar products. Fans of hiking and traveling more than once in practice were convinced that the quality of products is at a very high level.
For those who do not have the opportunity to read the article to the end, we offer to familiarize with the most popular brands:
1. Tatonka
2. Primus
3. Thermos
4. Berghoff
5. Stanley
Thermoses from these manufacturerscan boast of excellent materials of manufacture, good assembly, reliability and durability of service. For those wishing to choose a specific model, we recommend you go to our rating of the best thermos.
Principle of operation and thermos device
Thermos is a device used in households for storing liquids and food at a constant temperature for a long time. Thermoses can support not only high, but also low temperature regimes. Some models can be used as containers for cooking and drinking.
The design consists of an inner flask made of highly polished glass, plastic or metal. The available coating, when contacted with products or liquids, is not oxidized. The outer tank is usually made of similar materials, its outer part is treated with a special coating of copper, 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. Sealing of the structure is ensured by a sealing material, for example, silicone. The cup usually serves as a lid and is curled at the top of the thermos.
The main task of the thermos is to keep the inside of the product in a hot state. This is ensured by the minimum transfer of heat from it to the surrounding space. If it is necessary to maintain a low temperature, then the reverse process occurs - a small thermal transfer from the external environment to the product.
Types of thermoses
Universal
The design of the universal thermos is quite wide, and the neck has a large diameter. Thanks to this, in such a thermos you can store food in addition to drinks. Cork is with the presence of a valve to make it easier to pour drinks. The lid, like most other thermoses, serves as a glass or a cup for eating. Many universal thermoses have a handle located on the side, due to which it is easy to tilt the structure. Advantages:
- is suitable for drinks and for food,
- has a side handle,
- reasonable price.
Disadvantages:
- large dimensions.
Bullet
This unusual design name was obtained because of its elongated cylindrical shape, which visually resembles a bullet. This thermos is considered very compact and convenient to transport. It can be easily put in a bag or a backpack, and also placed in one of the side pockets. The thermos has a narrow neck, since it is designed exclusively for storing liquids. Modern models are equipped not with a stopper, but with a swivel lid 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 necessary temperature longer. There is also the upper circle.
Advantages:
- compact,
- provides minimal heat loss,
- low cost.
Disadvantages:
- is suitable only for liquids,
- usually does not have a handle.
With pneumatic pump
The thermos design is made in a desktop version. It is quite wide, has a massive top with a pomp on top, from which a special hose stretches to the bottom. Similar covers are available for thermos-bullets. Their main advantage is the lack of the need to unscrew the lid each time to pour a drink. The user just needs to press the pump, and then hot tea or coffee will start to flow from the spout. Such models last longer than others retain heat during use. A thermos with a pneumatic pump is ideal for use in a field kitchen or picnic.
Advantages:
- large volume,
- long-term heat preservation,
- easy to dispense liquid.
Disadvantages:
- large size design,
- not fit in every backpack,
- price is above average.
This type has the widest design, inside of which can fit from one to three containers. A thermos-sudok is an excellent option for the simultaneous storage of several products. For example, in one container you can pour liquid( soup, cabbage soup, borsch), and in the other place a second dish. It is especially convenient to carry a lunch in such a thermos. This will suit those who do not have the opportunity for any reason to eat in the working canteen or a nearby cafe. Many models are equipped with a spoon, fixed in the holder on the side.
Advantages:
- impressive volume,
- possibility to store several dishes at the same time,
- with the necessary equipment.
Disadvantages:
- very large dimensions,
- high cost.
Thermal mug
Small structure in the form of a mug with a handle. Such a thermos is convenient for daily use, for example, at work. In it you can store not only drinks, but also food, thanks to a wide neck. It is convenient to make instant dishes in a hot mug. Models vary in volume and configuration. Some options have a lid that you do not need to take off, but just pull out a special lever to drink. This is especially convenient for motorists who want to take a sip while on the move.
Advantages:
- compact size,
- ease of use,
- low cost,
- a large number of design solutions.
Disadvantages:
- average volume,
- are not designed for long-term heat preservation.
Parameters of thermos selection
Case material
One of the main parameters is the housing material. This affects the quality of the product, keeping the temperature as long as possible and for other properties of operation:
1. Metal
It has high strength, is able to withstand the impacts and mechanical damages. Such a thermos is perfect for traveling and hiking.
2. Plastic
It has less weight, it costs less than a metal case. It will be an excellent option for home, office, dacha, picnic or walk.
Internal bulb material
No less important is what is made of the inner flask into which the product is directly poured. From this parameter depends also the preservation of the necessary temperature regime, and safety, since the food should not interact with the material.
1. Glass
Often used option, which used to be in each thermos. Glass provides excellent storage quality, holds heat well and is easy to clean. The only drawback of this material is its fragility. If the application is not careful, it can be damaged, which leads to poor insulation. A thermos with a glass bulb is suitable for infrequent use in a home or villa.
2. Plastic
The main advantage is the light weight of the material and its strength. The bulb will not suffer from blows, that's why you can take such a thermos with you even in the most extreme campaigns and expeditions. True, plastic has its own drawback - it's the ability to absorb odors. After fragrant drinks and dishes from smells it is very difficult to get rid of, 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.
3. Steel
This is the best option. It is resistant to damage, it keeps the heat well, does not absorb odors, it is easy to clean. Even though weight is higher than the two previous materials, it remains the preferred choice in most cases. It is best to purchase stainless steel because it does not corrode over time.
Volume
When buying a thermos, the required volume is determined depending on the purpose. Calculate the stock taking into account the number of people who will use the product. Large in volume design keep the heat better, but if the thermos bottle is too large, it can become a burden in your luggage.
1. The values of small volume containers range from 0.25 to 0.5 liters. Usually it is thermo mugs or small thermos-bullets.
2. The average volume of the tank is usually in the range of 0.7 - 1 l. Are an excellent option for liquid food. Can be used by two people.
3. Large volume of tanks starts from 1.5 liters.and higher. Such thermos will be the best choice for a company of three or more people.
Build quality
When choosing a thermos, be sure to shake it - no sound should appear. Any crackling, rattling indicates a bad fixing of the inner flask. Such a product will break very quickly.
The thermos plug provides the necessary insulation, allowing you to keep the heat longer. Make sure that in the swirling state it is as tightly pressed against the neck.
The thermos must not have any internal odors. If they are present, this indicates that the manufacturer has saved on materials. Such products are able to absorb harmful substances and can cause harm to health.
Which thermos to choose
1. For long trips, difficult expeditions, difficult trips choose a thermos with an average volume from 0,7 to 1,5 l. The material is preferably steel or plastic. Well, if the model is universal, so that it was possible to store not only drinks, but also food.
2. For simple picnics, fishing trips, excursions to nature suitable thermos-bullets, universal and sudkov. Count on the number of people. The material of the body and inner flask can be steel and plastic.
3. The thermos bottle will be a good helper in conditions where it is not possible to cook food.
4. The Thermo mug will be a great option for everyday. A small amount is enough for one person, and the compact size will allow placing such a thermos even in a small bag.
How much is the thermos
1. Thermos-bullets and thermo mugs will cost a modest amount of about 500 to 1 thousand p.
2. Ship thermos will cost more - from 1,500 to 3 thousand p.
3. Universal( classic) thermoses vary in price, as it depends on the material and volume. The average values range from 700 to 2 thousand rubles.