Probably, each of us at least once was on a picnic, on a hike or just went to the pond to relax. In the summer heat, food spoils quickly, drinks get hot, and light snacks in between bathing become less tasty. In order for the products to retain their taste and not spoil for a longer time, an isothermal bag, or a thermal bag, is perfect. Consumer testimonials prove the benefits of this invention.
How does a thermal bag work?
Often an isothermal bag is called a cooler bag, but these concepts should not be confused. A cooler bag is able to cool products, and an isothermal bag only maintains the temperature for a certain period of time. Also, the difference between a thermal bag and a cooler bag is that the first can be used not only to store cold food, but also to keep food warm. For example, you just baked hot cakes, but you are afraid that by the end of the trip they will cool down and not be as tasty. Don't worry - a thermal bag will help you out.
Insulated bag accessories
Additional accessories are used to maintain the desired temperature inside the bag for longer. They are called accumulators of cold or heat. In order to understand whether your bag model needs them, just read reviews about thermal bags. The principle of the battery is simple. Before use, the cold accumulator should be placed in the freezer, and the heat accumulator should be heated in the microwave or in hot water (depending on their type). Batteries are built into the walls of the thermal bag or simply fit into it. Several batteries may be required to maintain the required temperature. One is designed for a volume of 5 liters. That is, if the bag is 40 liters, you will need 8 batteries. So, the presence of such a unit can significantly increase the shelf life of products.
What are thermal bags?
Before you make a purchase, you need to decide what kind of thermal bag you need. User reviews are great to help you solve this problem. To facilitate the task and not torturing you with many hours of studying information, we will tell you about what thermal bags are.
The smallest and most compact is called a sandwich maker. Its weight does not exceed 400 grams. This handbag is designed for a company of two people and perfectly keeps a small snack fresh. Another of its purposes, although not quite usual, but quite practical, is to store cosmetics in it in hot weather. Undoubtedly, our beautiful half thought of this beforehumanity, which quite often faces the problem of melted lipstick on the beach. In addition, this thermal bag is popular among students and office workers.
Thermocontainer is another kind of thermal bags. Weighing only 360g, it has the same capacity as a sandwich maker but is more compact.
The lunch box has an original design and multiple compartments. They can accommodate a salad, main course and dessert. Depending on the number of compartments, the weight of a lunch box can vary from 400 to 800 g. Most often, it is purchased by office workers or students.
There are thermal bags made in the form of a backpack, bag or container. They are large in size, the internal volume of such products can reach up to 140 liters. Any fishing, picnic or hike will not do without such an invention as a thermal bag. Customer reviews confirm that thermal backpacks keep food and drinks fresh for a long time and protect you from food poisoning.
What are thermal bags made of?
We figured out the types of bags, but what are they made of? Thermal containers, lunch boxes and other frame products are made of rigid polymeric materials. And such isothermal bags and backpacks basically have dense fabrics that can be washed and dry quickly.
But the most important thing in an insulated bag is what its inner layer is made of. In high-quality thermal bags, it is made of PVC materials that have reflectiveproperties. Such bags will keep the required temperature for a long time. In cheaper models of thermal bags, the inner layer is made of colored polyethylene. They keep the temperature much worse, but will cost less.
Baby thermal bottle bags: why are they needed?
Parents of small children understand the importance of having a bottle of baby food with them when walking. But it is not always warm enough. For this purpose, a new niche has appeared in the category of thermal bags - a children's thermal bag. It is designed to store baby formula bottles that are ready to use. It's very simple: you prepare the formula or heat the milk, and then put these bottles in a thermal bag. You will be able to feed the baby at his first request, and he will not be capricious while waiting for his dinner.
Someone will say that this is pampering, you can get by with a simple thermos, and only a lazy mother needs a thermo bag for bottles. Reviews of young mothers prove the opposite. They say that such thermal bags perfectly retain heat and do not let air in, and kids are happy to drink warm milk while walking in the park.
A short list of tips for choosing a thermal bag
Thermal bag should be bought only in a specialized store. When buying, it is advisable to require a certificate of product quality. Do not forget that the seller is obliged to fill out the warranty card, otherwise, if a defect is found, you will not be able to return or exchange the goods. Be sure before buyinginspect, feel it, check the locks and seams and determine if the thermal bag is of good quality. Customer reviews are important, so it would be nice to read them before buying. The walls of the thermal bag must be tight, otherwise it will not justify its function and leave only disappointment from the purchase. When choosing a bag, do not forget to base on your interests and on what you need this invention for (travelling, picnics or lunches at work).
Happy shopping!
