The word "refrigerator" causes us to unwittingly associate with a bulky unit designed to store a large number of products. But, for example, people who often travel to out-of-town picnics immediately come to mind such an object as a cooler bag.
This item is used to transport a small number of products, the safety of which requires maintaining a low temperature. Most often, it is used to transport meat for barbecue, drinks, sausages, etc. Since the cooler bag is very convenient to use and has a wide price range, in which everyone can choose the thing for their taste and possibilities, popularity in our country These accessories are growing year by year.
In truth, not all cooler bags would be rightly called refrigerators. Most of them are thermobags or thermocontainers, since they do not have a cooling element as such, and therefore they are only able to maintain a low temperature for some time.
A cooler bag can hold a low temperature inside for 5 to 12 hours. To increase this period, special cold accumulators are used , which are small briquettes filled inside with a special heat-resistant solution. Before use, they must be kept in the freezer for about 10 hours, and then placed in a cooler bag. As an alternative to briquettes, you can use dry ice.
But still, the term “cooler bag” is already very firmly rooted in the minds of our fellow citizens, so we will use it later on.
Varieties of cooler bags
The first kind of cooler bags are ordinary thermobags. They can be made of both nylon and plastic. If the size of the item is small, then it can be transferred using an ordinary pen. If the bag has impressive dimensions, then it is equipped with wheels and a special retractable handle for ease of movement. As a rule, the maximum volume of a thermobag is limited to 50 liters.
To another variety of cooler bags include thermal containers. They are usually made of plastic, and their volume is from 1 to 150 liters. The walls of the container are filled with polystyrene, and on top it is closed with a sealed lid. Compact drawers are equipped with one handle located in the middle. Medium-sized containers have two handles located on the sides. Such devices are able to maintain a constant temperature for up to 12 hours.
Car cooler bag is the last type of category we are considering. Its cardinal difference from previous bags is that it is equipped with an electronic refrigeration unit, which allows not only to maintain a constant temperature, but also to cool or heat the products. Such a refrigerator works from a car cigarette lighter.
In general, a cooler bag, reviews on the models and types of which are mostly positive, can be a very useful and indispensable item for almost every family.