Thermo bag with your own hands: how to make it
Recreation in nature involves a lot of people. For this purpose they usually gather with the whole family, and then they go by car to the forest edge or river bank to have a good rest in the bosom of nature. At the same time, a problem of this nature may arise: how to preserve the products taken with them, as long as it takes, while it is important that they do not deteriorate. For these purposes, special devices already exist: refrigerated bags and thermosets for dinners. The first case involves the use of electricity accumulated in the battery pack of the refrigerator bag. It is this energy that makes the cooling mixture work.
Cooling bags are usually used fortransportation of perishable products: prepared milk mixtures for children, butter, meat products, and much more. Thermal bags are designed to preserve hot products. For example, you go on a picnic, for which you decided to order a few pizzas. To be on the road they are not cold, they are placed in special thermal bags, after which you can fully enjoy the aroma and taste of a fresh dish.
A thermo bag made with your own hands isan excellent way out of the situation for those who wish to save a little on its acquisition. Such devices are in great demand among the staff of bars and cafes, which deliver lunch to offices. In the thermos bottle, lunch remains hot and appetizing. Namely, it is so necessary.
If you are interested in how to make a thermos bottlewith your own hands, you should know that there will have to work. To begin with, it is important to understand that this device is similar to a thermos, only intended for solid food. And if this is so, then it is required to use several layers of dense tissue, which are separated by layers of a substance with a low thermal conductivity. As such thermal insulation can be used ordinary air, not allowing the dishes to cool inside the bag. In such an adaptation, all seams should be stitched with special care and with the obligatory use of a dense thread. It is the seams that are most often the source of the losses of the main part of the heat.
The thermo bag with its own hands can be made fromspecial foil insulation. If it is a bottle, then it is required to roll the material with the foil side inward, and bend one end to close the bottom. The edges of joints should be superimposed on each other for better thermal insulation. Such a bag, made by hand, of course, is very primitive, but it allows you to keep the heat inside. Joints are quite appropriate to be fixed with glue, tape or stapler, depending on what suits you best. You can make a semblance of an envelope so that you can put food inside. For this, it is necessary to divide the strip of material into three parts, bend two of them to each other, fasten, and use the third as a valve. In order for the thermo-bag, manufactured by itself, to be securely closed, it is possible to glue a Velcro strip to the valve and base. Products in such an envelope will not spoil for a long time, but you do not need to carry an extra load.
So, now you know how to make a thermos-bag, it remains only to determine what it should be in size.