Thermo mug: what is it, how it works, how much heat retains

Thermo mug is a mini-type of thermos, distinguished by its compact size. These dishes are able to keep both warm and cool contents for a long time. It is very convenient and will come to the rescue in various life situations. In it, schoolchildren can carry tea or compote to classes, students - to lectures. But it will also come in handy when hiking, traveling, and just for a walk. We will find out what a thermo mug is, and why it has become so popular lately.

What is a thermo 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 way of drinking - you can drink from a thermos mug 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 the thermo mug can be used for different purposes. There are options exclusively for schoolchildren - with a bright print, travelers - lightweight models, car enthusiasts - with USB heating and others.

The principle of operation of the thermo mug

The principle of keeping warm / cold is directly dependent on the case - this is best done by models with double walls and an air cavity. In some versions, the space is filled with vacuum - such models will cost a little more, but they also have more efficiency.

Any thermo mug consists of two containers:

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

It is the interlayer between these layers that prevents the liquid from cooling. But it also helps not to burn your hands. By the way, it is precisely because of the last moment that the thermo mug does not need a handle, but you can find models with it.

What are the thermo mugs

There are a lot of species. Of course, according to the principle of operation, these will be similar models, but in terms of design, volume, material of manufacture, there are many options.

We will not immediately consider neither the shapes nor designs of thermo mugs, since the choice is very diverse. Let's analyze only the main design features.

Volume

The capacity of the dishes is one of the important criteria that you need to consider when buying a thermo 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 a schoolchild and student, it is better to take a 200 ml product, so that it is not so difficult to carry a mug in a backpack or bag. For hiking, you can also find a capacity of 1 liter.

Manufacturing material

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

• Plastic is the cheapest option. It is often used as an outer coating. In fact, this is a good material if you use the thermo mug carefully. For a child, it is better to choose something stronger.
• Metal is reliable and durable. It retains heat very well and keeps the drink cool. The best option.
• Ceramics - rarely used as the main raw material due to their fragility. Ceramic thermo mugs are best suited for home use, but for tourists it is not the most reliable option, since in difficult conditions it 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 thermo mugs, but even it is not always protected from splitting and deformation. Glass bulbs retain heat well, but the product turns out to be heavy and more expensive than metal.

Lid shape and opening mechanism

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

• Screw - the simplest option, the lid is screwed on, and the liquid does not flow 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 drawback - it is very difficult to wash the inner 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 much does the thermo mug keep warm

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

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