How to choose a good thermos for tea

How could one of the scientists have guessed when he came up with the box in which he was going to store liquid gases, that his invention would become so popular? We are talking about the Scottish James Dewar, who in the last century became the author of this invention. He had no intention of using it for domestic purposes. But his student was somewhat quicker. He quickly realized that this invention could be successfully used for commercial purposes. This, in fact, was his work for the rest of his life. He was only engaged in the fact that he released and sold thermoses.

Thermos, which has become familiar today, practically does not differ in design from what was originally invented. The simplicity of the invention and its practicality has been used in everyday life for quite a long time.

How is a thermos?

The principle of the invention of the Scotsman in the last century is practically no different from what modern devices have. The basis is the conservation of heat. In a cylindrical body is a bulb. It is thanks to this element that heat is retained. Thermal insulation properties are provided by vacuum. The flask is represented by fragile food glass or metal. The most popular is currently the second version of the material.

The metal is represented by two layers. The inner layer covers the surface of the container, and the outer creates a strong protective shell of the thermos.

Design Nuances

They have a certain meaning and leave a mark on the final decision when buying:

1. If the device is equipped with a glass flask, the device has a cap-stopper. If you tilt the thermos, then the liquid may spill out of their capacity. For this reason, the device is clearly not suitable for long trips. But hygienically, glass flasks are superior to the metal counterpart. It is quite easy to wash, and tea in a thermos with a glass flask will be tastier and more aromatic in nature.
2. Structures with metal flasks are provided with a screw cap. Such a device has greater reliability and you can take it with you on any trip without any fear.
3. The best quality has a thermos having a double metal flask. Such designs are able to store heat much longer. The only drawback is that they are much larger in mass.
4. A separate item is a pump-type view of a thermos. The design assumes the presence of a pump cover. To pour tea from a thermos into a mug, you need to use a pump. To do this, simply pump tea from a thermos using a pump. In such a device, the drink remains hot for a long time. Another positive point is that it is almost impossible to accidentally spill tea. Such designs have a sufficiently large capacity. Of course, cumbersomeness is some disadvantage, but for one family going on vacation, it will be a kind of lifesaver. A drink is enough for every member of the family.
5. A kind of mini thermos is a thermomug. Despite the fact that such a device is not able to retain heat for a long time, nevertheless, it enjoys considerable popularity among certain categories of the population. For example, it is very often used by fishermen. Often, many office workers resort to its use.

Any thermos can be considered high-quality if it is able to maintain the required temperature for 24 hours. At the same time, it should not fall below 65-70 degrees.

What you need to know in order to choose the right thermos?

If the device will be designed to store tea in it, then this circumstance should be repelled. How successful the choice will be depends on knowledge of the nuances of this issue. It is necessary to have at least the slightest idea of ​​what a thermos is. Otherwise, you’ll get something completely different from what you would like ideally.

The seller will certainly take advantage of knowledge gaps and hand over what is more profitable to him in accordance with the sales plan. As a result, the buyer will receive ordinary consumer goods on hand, and he is unlikely to be satisfied with the purchase during its operation. If the buyer knows the design of the thermos, has an idea of ​​what materials it is made of, then he has a certain advantage over other purchasers.

First of all, it should be decided for what purpose the thermos will be used. If a person constantly travels, is on eternal travel trips, or often goes, for example, on campaigns, then a device with a metal flask would be the best option for him. This thermos is durable and can withstand long-term operation without any problems. If a thermos accidentally falls on a trip, the metal flask will not break and remain intact.

The selection criteria can be reduced to the following items:

1. Intended use. If the thermos is intended purely for domestic use in the home, then a model with a glass flask is quite suitable. Nobody is going to carry a thermos anywhere, and therefore the possibility of damage to a glass bulb is minimal in nature. Of course, in terms of fragility, it is significantly ahead of metal, but from a hygienic point of view, glass has a more practical character. But their main function is exactly the same. They both deal with it quite successfully.
2. Body material. It is generally accepted that a thermos with a plastic case is better able to maintain temperature. Having poured tea into it, a similar device can maintain a temperature of 50 degrees during the day.
3. Check the tightness characteristics. It is difficult to disagree with the fact that a thermos is purchased for long-term operation. Such products are clearly not one-off. When buying, you need to start by checking that the lid is tight and tight. This criterion is fundamental in terms of the ability to maintain temperature for a long time. If there are no problems in this regard, then everything is in order. And in this position the product is of high quality.
4. What is the volume of the flask? This indicator is necessary not only to pour as much tea as possible into a thermos. The main nuance is the ability to maintain temperature for a long time. The larger the bulb in volume, the longer the required temperature is maintained in the thermos.
5. The presence of odors. When a thermos is purchased in a store, the buyer naturally opens it. No odors should be present. It happens that undesirable aromas are still present. This may indicate a low quality of the materials of which this product is made. It is better to refuse to buy such a thermos. This circumstance is not only unpleasant in nature, but can also cause potential harm to health. Yes, and who likes to drink tea with the presence of extraneous odors?
6. The strength of the flask. This criterion is very important, especially in cases where the thermos is constantly taken with you on the road. After all, if the flask is not securely attached, then sooner or later it will break anyway. You must understand that on the road, a thermos is more susceptible to mechanical stress. According to this criterion, metal flasks have obvious advantages. But in the case of a metal flask, not everything is so cloudless.During impacts in the metal microcracks are formed, which will certainly affect the subsequent operation of the device. Leakage is broken, and with it there is a loss of thermal insulation properties.

Real gourmets know a lot about the nuances of making tea. They can spend hours talking about how to make and brew tea. It is difficult to argue with this, especially with those who have rich practical experience in this matter. If the thermos is used exclusively for tea, then they recommended the use of devices with a glass container. And this is far from accidental, since such designs contribute to the preservation of the delicate taste of the drink, which will certainly be appreciated by the regular at the tea ceremony.

Practice check

It is better, of course, to do this at the place of purchase of the device, of course, if there is such an opportunity. In this way, you can most accurately assess the quality of the purchased product.

Heated water and poured into a thermos. Exposure is maintained for a quarter of an hour. If the case is heated, the product should be classified as defective samples. Of course, this model is better not to buy. In such a device, the liquid cools quickly. In this case, any sense of acquiring such a device is lost. The choice now is so great that the problem is not how to find such a device, but in the absence of the opportunity to get lost in this variety.

A quality thermos should meet the following criteria:

1. Harsh odors should be absent.
2. The lid that closes the flask should be pronounced tight.
3. The preservation of temperature depends on how much the bulb has. The larger it is, the longer the required temperature is stored in the device.
4. Metal flasks are more pronounced practicality and durability. But the glass version has better hygienic characteristics.
5. When the thermos is filled with hot water, the case must not heat up.

Some more tips

Some other nuances will help in choosing:

1. It is better to choose thermoses with a large volume. They will allow you to keep the temperature longer.
2. The nature of the material for the manufacture of the flask will determine the duration of the temperature. This is best expressed in designs with a double metal bulb.
3. The manufacturer must be indicated on the model with the provision of complete information about its details. If this is not the case, then it is better not to purchase such a model.
4. The choice must be approached with full responsibility. If you want to smell the device, then do not be shy. You should always remember that not only the taste of the drink, but also the health of the consumer depends on the quality of the thermos. If the material is of poor quality, then it will certainly exude an extraneous odor.
5. You should not blindly focus on price. High cost is not always a guarantee of good quality. You can, without overpaying, purchase a fairly high-quality product. The main thing is to know how to choose it correctly.

Tea is common throughout the world. Famous is the Chinese tea ceremony. British, Germans and many other representatives of different nations drink tea. We love this drink in Russia. It is enough to recall, for example, the picture of the famous domestic artist "Tea drinking in Mytishchi near Moscow."

The tips presented in this article will help you choose the right thermos for making tea. In this case, together with a thermos, the buyer will gain not only the ability to prepare a fragrant fine drink, but also a good mood. Have a nice tea party.

Video: how to choose a thermos