How to choose a thermos for tea and a thermos for better eating?

Everyone has such a good thing, as a thermos in the economy. Its main function is prolonged cold preservation or heat inside. Thermos - the invention is capable of significantly make life easier. It is indispensable in the trip, while enjoying the outdoors, hiking or outside the city. But to the product in good faith to fulfill its objectives, it is necessary to pay close attention to its quality. To understand how to select a thermos, you should better study its basic types and characteristics.

The timing of a thermos of the XIX century. It came up with the Scottish physicist James Dewar. It engaged change of shape and appearance of a glass box for storing liquid gas. Capacity began to look like a flask with a narrow neck, and a double-walled glass, between which there remained a slight vacuum. This gave vessel fluid inside evaporate.

Use a thermos in the home started in the first half of the XX century, thanks to a student physicist James Dewar - Reinhold Burger. He added to the container and the metal body equipped it with a stopper and a lid, which was used also as a cup. Serial production of articles organized by the German firm Thermos. So far, it is considered the best producer of the product.

Types of thermoses and their features

Thermos is very useful on business trips and outings into the countryside. It is much better, more convenient and more compact than the kettle, which also have heat in the fire, to drink hot tea or coffee. There are many models thermos, and to choose correctly, you should know what type of fit for any purpose.

1. "Bullet". The product has an oblong shape, the cover-glass and a convenient storage pouch. Thermos suitable for tea and other liquids.
2. Thermos with fanfare. This steady-state model is not designed for carrying. It can persist for a long time, the desired temperature of the liquid. With mechanical buttons to easily pour the contents of the thermos in a mug, and wherein the screw cap is not necessary.
3. Thermomug. This is the same thermos, only smaller. It is convenient to take with you in the car and keep it, for example, tea or coffee. wherein the temperature of the beverage remains constant for several hours.
4. Universal model. This thermos is suitable for storage of liquid or food. It does not have very narrow neck, so no problems there could get pieces of food. In addition, the model is equipped with a dual plug, providing a perfect tightness, and a handle for easy holding. Thermos lid can be used as glass.
5. Sudkovy thermos. The product consists of several containers can be hermetically sealed. The model has a fairly large size, but different at the same time low weight. Plastic is used to make a thermos.
6. ThermaBag. To store food at home, you can use the Thermos. Unfortunately, the internal temperature is not retained for long.

Furthermore shapes and sizes flasks may also be made of metal or plastic. This factor should be taken into account before you buy. If the product is purchased for travel, hiking, etc., it is better to prefer the metal version, it is much more reliable than plastic and will last longer.

The model of the plastic will fit for the home, besides its price is much lower. Material inside the thermos flask is also important. It can be made of steel, glass or be plastic. Glass options retain heat for a long time, but rough handling can easily be broken. For example, if a drop on a hard floor thermos.

Stainless steel flasks are also acceptable, but there is a small minus. If kept in a thermos for food, then to its walls may stick food particles. Also, the metal surface visible drops and stains from the liquid. Plastic Vial lightweight and impact resistant, but it absorbs odors and may change color upon contact with the coloring liquid or food. Also, foods and beverages stored in a thermos can change the taste.

Before buying it is important not only to study the reviews of models and manufacturers, but also carefully examine the body products to ensure there are no flaws, check if there are any unpleasant odors, and how tightly the cover is closed.

For fishing

On leaving the nature and, in particular, to fishing, can not do without a good, high-quality thermos. This issue must be approached with a mind and buy the product according to the stated requirements: reliable, durable, safe for health. Size is also important. If fishing is going it alone, then purchase a bulky model does not make sense.

But for a holiday with family or friends, you should think more about the product. About how to choose a thermos for fishing, you can see if you study the following tips:

• Volume. One of the most important criteria for selecting a thermos. One person fit the model capacity of 1.5 liters. Such a product will look is compact and does not take up much space in your backpack. Besides allow beverage to maintain optimal temperature for 6 hours. For a few people will have to buy the product of larger size.
• Material flasks. The optimal embodiment for a thermos, which is taken fishing be metal or glass flask. The metal is considered more reliable, although it may develop leaks. But the glass is easily broken, but on the nature of it happens much more often than in the home.
• neck size. Attention should be paid and this parameter. For fishing you can buy a thermos with a wide neck, which has the double cork. To pour tea or coffee mug, enough to get a small plug for easy cleaning and a thermos, unscrew great. Unfortunately, over time such a thermos may lose tightness, and liquid inside cools much faster than in the container with a narrow neck.
• Screw the plug and the plug with the key. And he and the other option can be the place to be. In the first case tube have high reliability and durability, since they have a special insulating gasket. Key in the tube transforms the appearance thermos and add convenience in its use, but not always reliable, because at any moment can break.

Tea and other beverages

Most often, it is acquired thermos for tea, coffee and other beverages. Therefore, when choosing a need to pay attention not only to its volume, but also the material of the hull and the inner core, and a good air-tight lid. Comfortable shape and attractive design also should not be in last place.

• Cover with a valve. Thermos for tea and drinks should be a handy valve so that you can easily pour the liquid into a glass without unscrewing the cover. Moreover, such embodiment does not lose temperature, so long tea will remain hot.
• Housing. Strong, robust housing plays a leading role when buying a thermos. The product must be able to withstand accidental impacts or falls, so the stainless steel is better to choose both outside and inside, i.e. the bulb must also be metal. It is important to make sure, and as a material and its safety for the organism, because the concern about health - it's the most important thing!
• No smell. After a visual inspection, you must make sure that the model has no unpleasant odor inside. Otherwise, the beverage taste may change.
• Thermal conductivity. Thermos housing must not be heated when filling it with hot tea or other beverages. If the temperature suddenly increased, it means that the product will not be able to maintain the liquid hot for a long time. Before going you should test it by pouring boiling water into and leaving for about twenty minutes. If the cabinet has become warm, this thermos is inferior or defective and should be returned.

The same can be done again, but leave the hot water within a day already. The manufacturer's instructions should be specified as the water temperature decreases.

For food

Thermoses for food, as well as products for tea and other liquids may be different. To better understand the models and choose correctly, it is necessary to pay attention to the following points:

1. The ability to store heat. High-quality vacuum flask for food is to keep the temperature inside quite a long time. Some manufacturers of advanced models guarantee that the food will not cool down for eight hours. But we should also pay attention to the tightness of the product, the type and material of the bulb.
2. Material flasks. Glass and metal can for a long time to keep warm. But the glass bulb is very fragile and require careful handling. Therefore, these flasks are unlikely to be suitable for food hiking or fishing. There are also models with a plastic insert. They keep the heat for four hours. Hot soups fit with an all-metal thermos flask.

The question of how to choose a good thermos, difficult to give a definite answer. It should take into account a lot of nuances and do not forget to study the responses of firms and models before you buy. It matters for what purpose is acquired thermos, whether it is for hiking and fishing, or they need to be used only in the home, at work, in the country, etc.