Thermal mug - what is it?

Thermal mug is a mini-type of thermos, distinguished by its compact size. This cookware can retain both heat and coolness for a long time. It is very convenient and will come to the rescue in various life situations. Schoolchildren can use it to carry tea or compote to classes, and students to lectures. But it will also come in handy on hikes, trips, and just for a walk. Let's find out what a thermal mug is and why it has become so popular lately.

What is a thermal mug?

This is a special cookware that, due to its design features, effectively retains the heat or cold of the liquid inside. It differs from a thermos not only in its smaller volume, but also in the drinking method - you can drink from a thermos directly from the neck, without using additional cups.

From the very beginning, the product was intended more for tourists, but over time, both parents and office workers appreciated the benefits and convenience. Nevertheless, even now a thermal mug can be intended for different purposes. There are options exclusively for schoolchildren - with bright prints, travelers - lightweight models, car enthusiasts - with USB heating and others.

The principle of operation of a thermal mug

The principle of heat/cold preservation directly depends on the body - models with double walls and an air cavity do this best.In some options, the space is filled with a vacuum - such models will cost a little more, but they are also more effective.

Any thermal mug consists of two containers:

• the first is a beautiful outer casing;
• inner glass.

It is the layer between these layers that prevents the liquid from cooling. But it also helps to avoid burning your hands. By the way, it is precisely because of the last point that the thermal mug does not need a handle, but you can find models with one.

What types of thermal mugs are there?

There are a lot of types. Of course, according to the principle of operation, these will be similar models, but in terms of design, volume, and manufacturing materials, there are many options.

We will not immediately consider either the shapes or designs of thermal mugs, since the choice is very diverse. Let us analyze only the main design features.

Volume

The capacity of the dishes is one of the important criteria that needs to be taken into account when purchasing a thermal mug. There are products for both 200 and 1,000 ml. Here, of course, it all depends on personal preference. If the dishes will be used by one person, then 300 ml is enough. For schoolchildren and students, it is better to take a 200 ml product so that it is not so difficult to carry the mug in a backpack or bag. For hiking you can also find a 1 liter container.

Material of manufacture

Another important criterion on which the reliability of the product and the duration of heat retention depend.

• Plastic is the cheapest option. Often used as an external covering. In fact, this is a good material if you use the thermal mug carefully. For a child, it is better to choose something stronger.
• Metal is reliable and durable. Retains heat very well and keeps drinks cool. The best option.
• Ceramics is rarely used as a main raw material due to its fragility.Ceramic thermal mugs are best suited for home use, but for tourists they are not the most reliable option, since in difficult conditions they will break very quickly.
• Glass is a harmless and heat-resistant material, but not the most durable. Only tempered glass is suitable for the production of thermal mugs, but it is not always protected from splitting and deformation. Glass flasks retain heat well, but the product is heavy and costs more than metal.

Lid shape and opening mechanism

This is also an important criterion, and ease of use directly depends on it. There are three types of opening mechanism:

• Screw is the simplest option; the lid screws on and the liquid does not leak out.
• The latch is convenient and easy. Best suited for continuous use, minimal risk of steam burns. The most popular type of opening.
• Push-button - more practical and faster. The valve opens when the button is pressed. However, this method has a disadvantage - it is very difficult to wash the internal structure of the lid, and in many cases it cannot even be disassembled.

There are also combined options. For example, the lid is closed with a latch, but has an additional lock - protection against accidental opening.

How long does a thermal mug keep warm?

This depends on the design of the thermal mug and its quality. Optimally - from 20 to 120 minutes. These are the most inexpensive models. But there are products that can retain heat inside the flask for up to 6 hours.

Thermal mug is a very convenient and practical dishware that will come in handy in many cases. You can appreciate its merits only by trying it in action.